Simplify:

Maria had 10 dogs and gave each dog two scoops of dog food. Each scoop of dog food contained 9 pieces. How many pieces of dog food did Maria serve?

What is the product of and ?

The cost for two people to be part of a tennis club is a month. If Jon and Marie share the annual cost of the club membership, how much does each person have to pay per year?

If Rebecca sells pears at her store for 50 cents each, or 3 for 1 dollar, how many pears can she buy with $4.50?

Evaluate the Following Expression

Simplify the expression.

Simplify:

Greg eats 4 brownies, which is equal to of the total batch. How many brownies are in the total batch?

Andrea and her three friends all pitched in to buy a puppy. Each person paid equal parts. If Andrea paid 20 dollars, what was the total cost of the puppy?