Jon’s teacher wants to buy giant cookies for the entire class. If cookies cost $1.95 each, write an equation that shows how much change she will get back from $30 after buying C amount of cookies. A. y = 28.05C
B. y = 30C - 1.95
C. y = 30 - 1.95C
D. y = 31.95C

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)