stats and prob

Rachel is a software saleswoman. Let y represent her total pay (in dollars). Let x represent the number of copies of History is Fun she sells. Suppose that x and y are related by the equation y = 110x+ 2100. 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. What is the change in Rachel's total pay for each copy of History is Fun she sells? $ 0 What is Rachel's total pay if she doesn't sell any copies of History is Fun? $1 X 5