Salma is a software saleswoman. Her base salary is \( \$ 1600 \), and she makes an additional \( \$ 60 \) for every copy of Math is Fun she sells. Let \( P \) represent her total pay (in dollars), and let \( N \) represent the number of copies of Math is Fun she sells. Write an equation relating \( P \) to \( N \). Then use th equation to find her total pay if she sells 22 copies of Math is Fun. Equation: \( \square \) Total pay if Salma sells 22 copies: \( \$ \square \)

To find the equation relating Salma's total pay \( P \) to the number of copies \( N \) she sells, we can express her total pay as the sum of her base salary and the commission she earns from selling the books. The equation can be written as: \[ P = 1600 + 60N \] Now, to find her total pay if she sells 22 copies of Math is Fun, we can substitute \( N = 22 \) into the equation: \[ P = 1600 + 60(22) \] Calculating the commission for 22 copies: \[ 60 \times 22 = 1320 \] Now, adding this to her base salary: \[ P = 1600 + 1320 = 2920 \] Thus, the total pay if Salma sells 22 copies is: \[ \text{Total pay if Salma sells 22 copies: } \$ 2920 \] So, the final answers are: Equation: \( P = 1600 + 60N \) Total pay if Salma sells 22 copies: \( \$ 2920 \)