A student conducted a survey of the 750 seventh graders in her school. She found that 2 out of 5 students in the seventh grade class preferred vanilla cupcakes over chocolate. Based on this information, how many students in the seventh grade class preferred vanilla cupcakes over chocolate?

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Which shows how to solve the equation 3/4x=6 for x in one step?