1. An archer shoots 6 arrows at a target. Some arrows hit the 9 point ring, and the rest hit the 10 point bull's eye. Write an equation that gives the score "s" as a function of the number "a" of arrow s that hit the 9 point ring, then find the score if 2 arrows hit the 9 point ring.
2. You have a coupon for $2 off the regular cost per movie rental. You rent 3 movies, and the regular cost of each rental is the same. Write an equation that gives the total cost "c" (in $) as a function of the regular cost "r" (in $) of a rental. Then find the total cost if a rental costs $3.99.

Question

1. An archer shoots 6 arrows at a target. Some arrows hit the 9 point ring, and the rest hit the 10 point bull's eye. Write an equation that gives the score "s" as a function of the number "a" of arrow s that hit the 9 point ring, then find the score if 2 arrows hit the 9 point ring.
2. You have a coupon for $2 off the regular cost per movie rental. You rent 3 movies, and the regular cost of each rental is the same. Write an equation that gives the total cost "c" (in $) as a function of the regular cost "r" (in $) of a rental. Then find the total cost if a rental costs $3.99.