A bag contains forty coins, all of them either 2 cent or 5 cent coins. If the value of the money in the bag is $1,55, find the
number of each kind.

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?

2x + 3y = 17 5x + 6y = 32 usibg method if elimination