Answer:8
Step-by-step explanation:
You need to set up a linear graph. One side with gallons and the other with dollars. Point 1 will be at (1500, 2.10). Point 2 (1300, 2.95). Draw a straight line through these points in your graph and your graph will then give you the answers to your other questions.
There are 1 1/2 hip hop classes for 1 ballet class.
A vertical line i believe since x is constant
