enVision Topic 4 Test Review - 7th Grade

The price of nails is $1.29/lb, the price of washers is $0.79/lb, and the price of bolts is $2.39/lb. Write an expression to represent the total price of n pounds of nails, w pounds of washers, and b pounds of bolts. Please do NOT put spaces in when typing your answer.

The price of nails is $1.29/lb, the price of washers is $0.79/lb, and the price of bolts is $2.39/lb. What is the total cost of buying 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts?

The height of the water in a fish pond is 42.5 inches. Water is being drained from the pond at a rate of 3.75 inches per minute. What is the height after 3 minutes? Be sure to include units in your answer.

Match each expression to its equivalent expression.