Question

help on square roots.. will give a medal!!

An expression is shown below:

square root of 18 plus square root of 2

Which statement is true about the expression?

a.It is rational and equal to 3.

b. It is rational and equal to 4.

c. It is irrational and equal to 3 multiplied by the square root of 2.

d. It is irrational and equal to 4 multiplied by the square root of 2.

2.)The price of bronze has increased by 10% per year from 2000. In the year 2000, Harry bought a bronze medal for $120. Which of the following functions f(x) can be used to represent the price of the medal x years after 2000?

f(x) = 120(0.9)x

f(x) = 10(120)x

f(x) = 120(1.1)x

f(x) = 10(1.1)x