Mrs. Beckner is going to Hawaii. She plans to learn to surf. The Surf Hut company charges an initial fee of $65 for the lesson plus $2.50 for each hour she uses the surfboard.(2 points)

The number of hours is the
independent variable
. The total cost of the surf lesson and surfboard is the
dependent variable
.
Question 5
Write a function for the total cost of the surf lesson and surfboard rental.(1 point)

Let "x" represent the number of hours.

The function for the total cost would be:
C(x) = 2.5x + 65

is this correct

Yes, that is correct. The function C(x) = 2.5x + 65 represents the total cost of the surf lesson and surfboard rental, where "x" is the number of hours.