If 3 3/4 lb. of candy cost $20.25, how much would 1 lb. of candy cost.

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

The deepest part of the swimming pool is 12 feet deep. the shallowest part of the pool is 3 feet deep. what is the ratio of the deeply of the deepest part of the pool to depth of the shallowest part of a pool?