Question

someone please help me. i will give you a medal! it's algebra

Answer 1

1.The function below shows the number of students of a school who enrolled for ballet classes. Let f(x) represent the total number of students who enrolled for the classes after x years.

f(x) = 12(1.06)x

The average rate of change in the number of students who enrolled for ballet classes from the third to the fifth year is ________students per year.

Round your answer to the nearest whole number.

2.Wendy enjoys listening to hip hop and downloads music regularly from the internet. She already has four hours of hip hop in her collection. From the second month onward, the number of hours of hip hop music she downloads each month is nine percent greater than the number of hours of hip hop music she had downloaded the previous month. Which function best shows the total number of hours of hip hop music Wendy has in her collection f(x) after x months?

a. f(x) = (1.09)x + 3

b. f(x) = 3(1.09)x

c. f(x) = (1.09)x + 2

d.f(x) = (1.09)x - 2