Keiko is a software saleswoman. Let x represent her total pay (in dollars). Let y represent the number of copies of History is Fun she sells. Suppose that x and y are related by the equation 2200+900x=y.

Question

Answer the questions below.

Note that a change can be an increase or a decrease.
For an increase, use a positive number. For a decrease, use a negative number

Answer 1

What is the change in Keiko's total pay for each copy of History is Fun she sells?

What is Keiko's total pay if she doesn't sell any copies of History is Fun?

Answer 2

idk help