Amy earns 56 dollars each week working part-time at a book store. she earn one additional dollar for each book that she sells. let a be the amount (in dollars ) that amy earns in a week if she sells b books write an equation relating a to b. then use this equation to find the amount of money amy earns if she sells 21 books .

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

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)

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.