A tall building has four sides with the same number of windows on each side. There are 28 windows on one side. How many windows are on the whole building?
There are 4 classes of third graders at Washington Elementary. Each class has 19 students. How many third grade students are there at Washington Elementary?
Chris plays basketball 2 times per week. He plays soccer 3 times a week. How many times does Chris play basketball and soccer in 9 weeks?
Thirty grapefruits are packed with 6 in each bag. Each bag of grapefruits is sold for $4 per bag. What is the total sales price for all of the grapefruits?