Lena is a software saleswoman. Her base salary is 2400, and she makes an additional $50 for every copy of math is fun she sells.

Question

Let P represent her total pay (in dollars), and let N represent the number of copies of math is fun she sells. Wrote an equation relating P to N. Then this equation to find her total pay if she sells 21 copies of math is fun

Answer 1

The equation relating P to N is:

P = 2400 + 50N

To find Lena's total pay if she sells 21 copies of "math is fun", plug in N = 21 into the equation:

P = 2400 + 50(21)
P = 2400 + 1050
P = 3450

Therefore, Lena's total pay if she sells 21 copies of "math is fun" is $3450.