Gerardo has $2.50 in quarters dimes and nickels. If he has 18 coins how many of each coin does he have?

An animal shelter has 21 puppies. if the puppies are 28% of the total dogs and cat population how many dogs and cats are in the animal shelter

Use the distributive law to multiply. 3(4x + 5y + 6)

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.