Deon is a software salesperson. His base salary is $1800 and he makes $80 more for every copy of Math is Fun he sells. His total pay, P (in dollars), after
selling c copies is given by the following
P-1800+80c
Answer the following questions.
(a) If Deon's total pay is $4520, how many copies did he sell?

(b) What is Deon's total pay if he sells 24 copies?



Answer :

(a) 34 copies

4520 = 1800 + 80c
2720 = 80c
34 = c

(b) $3,720

P = 1800 + 80(24)
P = 1800 + 1920
P = 3720

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