Question

3. Ricardo is enrolled in a video-game rental program. In the program, a certain number of rentals are free, and then a fee is charged for each rental. The fee for each rental is the same. The expression 3(r – 5) represents the total Ricardo has paid for his rentals so far. The number of games he has rented so far is unknown.
A. What does the first factor in the expression represent? Explain how you know.
B. What does the variable r in the second factor represent? Explain how you know.
C. What does the number 5 in the second factor represent? Explain how you know.

Answer 1

A. so the 3 before the 3(r-5) represents the initial price, in this circumstance being 3
B. the R represents the rentals, for every R another video game has been rented
C. The 5 represents the money subtracted for every video game rented.

Answer 2

1) the first factor, 3 means, that it costs $3.00 per video starting with the sixth video Ricardo rents. 2) the variable r represents the number of videos that Ricardo rents each month.3) the five represents the number of videos he can rent for free.  I know this because it is being subtracted from the number of videos he rented in a particular month.  So, for example, if he rents 25 videos, he pays for only 20.  

hope this helps :)