Question

A DVD store charges $4.70 for each day, d, a DVD s rented. The store also gives you a dollar off if the DVD is returned before 5 days.

a. Write a rule to represent the rental charges C.
b. How much will you play if you return the DVD after 4 days? 7 day?

1) C=4.70d;$18.80, $32.90.

2) if d ≤ 5 then C=4.70, if d > 5 then C=4.70 d + 1;$ 17.80, $31.90.

3) f d ≥ 5 then C=4.70, if d < 5 then C=4.70 d - 1; $18.80, $32.90.

4) if d ≤ 5 then C=4.70, if d > 5 then C=4.70 d - 1; $18.80, $31.90

Answer 1

@onemoretime

Answer 2

answer is 3.
Because if d is greater then 5, you would pay 4.70
and if d is less then 5, you would pay 4.70d - 1.00

after 4 days : 4.70(4) - 1 = 17.80 -- I am not sure about this one...because if you turn it in on the fourth day, you get $1 off making it $17.80
after 7 days : 4.70(7) = 32.90