Answer:
The needed equation relating P to N is P = $2300 + 90 N
His total pay if he sells 21 copies of Math is Fun is 4,190.
Step-by-step explanation:
The base salary of Juan = $2300
The earning on per copy sold = $ 90
P : His Total Pay
N : Number of books copies he sells.
Noe, here his earnings per copy sold = $90
So, the total earnings after selling N copies = N ( earning after 1 copy)
= N ( $90) = 90 N
TOTAL EARNINGS = BASE SALARY + MONEY EARNED after selling N copies
or, P = $2300 + 90 N
So, the needed equation relating P to N is P = $2300 + 90 N
Now, in second case: N = 21
So, P = 2300 + 90 N = 2300 + 90 (21)
= 2300 + 1890= 4,190
or, P = 4,190
Hence, his total pay if he sells 21 copies of Math is Fun is 4,190.
