Please help!

1.) Your friend has $100 when he goes to the fair. He spends $10 to enter the fair and $20 on food. Rides at the fair cost $2.00 per ride. Which function can be used to determine how much money he has left over after x rides?

A. f(x) = -2x + 70

B. f(x) = 2x + 70

C. f(x) = -2x - 70

D. f(x) = -30x + $100

2.)It takes a total of 6 hours to fill up an in ground backyard pool using a standard hose. A function can represent this situation to represent the amount of water in the pool until it is full as a function of the time the hose is running. Determine the domain for this function.

A. The domain is all integers from 0 to 6 hours.

B. The domain is all even integers from 0 to 6 hours.

C. The domain is all real numbers from 0 to 6 hours.

D. The domain is all positive real numbers.

3.)A science experiment begins with a metal at -100° Celsius. The following function describes the temperature change per minute: f(x) = 89x - 100°. How will the graph of this function change if the metal is at 25° at the start of the experiment?

A. The line will shift vertically up by 125°.

B. The line will shift vertically up by 25°.

C. The line will shift vertically down by 125°.

D. The line will shift vertically down by 25°.

4.)You attend an amusement park with your family. Your parents buy you an all-ride pass for $20, shown as f(x). Instead of getting a pass, your parents decide to pay $4.00 for each ride they take, shown as g(x). What function shows the correct combination of these two functions to represent the total cost to them of attending the amusement park that day, shown as h(x)?

A. f(x) = 20x, g(x) = 4, h(x) = 20x + 4

B. f(x) = 20, g(x) = 4, h(x) = 4 + 20

C. f(x) = 20, g(x) = 4x, h(x) = 4x + 20

D. f(x) = 20x, g(x) = 4x, h(x) = 20x + 4x

5.)A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance from the finish line.

A. f(x) = - 1 over 3 x + 5

B. f(x) = - 1 over 5 x + 3

C. f(x) = 1 over 5 x + 5

D. f(x) = 1 over 3 x + 3

Question

Please help!

1.) Your friend has $100 when he goes to the fair. He spends $10 to enter the fair and $20 on food. Rides at the fair cost $2.00 per ride. Which function can be used to determine how much money he has left over after x rides?

A. f(x) = -2x + 70

B. f(x) = 2x + 70

C. f(x) = -2x - 70

D. f(x) = -30x + $100
 
2.)It takes a total of 6 hours to fill up an in ground backyard pool using a standard hose. A function can represent this situation to represent the amount of water in the pool until it is full as a function of the time the hose is running. Determine the domain for this function.

A. The domain is all integers from 0 to 6 hours.

B.  The domain is all even integers from 0 to 6 hours.

C. The domain is all real numbers from 0 to 6 hours.

D. The domain is all positive real numbers.

3.)A science experiment begins with a metal at -100° Celsius. The following function describes the temperature change per minute: f(x) = 89x - 100°. How will the graph of this function change if the metal is at 25° at the start of the experiment?

A. The line will shift vertically up by 125°.

B. The line will shift vertically up by 25°.

C. The line will shift vertically down by 125°.

D.  The line will shift vertically down by 25°.

4.)You attend an amusement park with your family. Your parents buy you an all-ride pass for $20, shown as f(x). Instead of getting a pass, your parents decide to pay $4.00 for each ride they take, shown as g(x). What function shows the correct combination of these two functions to represent the total cost to them of attending the amusement park that day, shown as h(x)?

A. f(x) = 20x, g(x) = 4, h(x) = 20x + 4

B.  f(x) = 20, g(x) = 4, h(x) = 4 + 20

C. f(x) = 20, g(x) = 4x, h(x) = 4x + 20

D.  f(x) = 20x, g(x) = 4x, h(x) = 20x + 4x

5.)A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance from the finish line.

A. f(x) = - 1 over 3 x + 5

B.  f(x) = - 1 over 5 x + 3

C.  f(x) =  1 over 5 x + 5

D.  f(x) =  1 over 3 x + 3