Bill is a software salesman. His base salary is $1500 , and he makes an additional $80 for every copy of History is Fun he sells. Let P represent his total pay (in dollars), and let N represent the number of copies of History is Fun he sells. Write an equation relating P to N . Then use this equation to find his total pay if he sells 26 copies of History is Fun.
P = 80N + 1500 <== equation if he sells 26 copies.. P = 80(26) + 1500 P = 2080 + 1500 P = 3580 <== total pay