What is the slope of the line represented by the equatior

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?