Grade 8 | Unit 3 | Lesson 5: Introduction to Linear Relationships | Practice Problems

A restaurant offers delivery for their pizzas. The total cost is a delivery fee added to the price of the pizzas. One customer pays $25 to have 2 pizzas delivered. Another customer pays $58 for 5 pizzas. How many pizzas are delivered to a customer who pays $80?

• 6 pizzas

• 7 pizzas

• 8 pizzas

• 9 pizzas

• 10 pizzas

To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each hour of labor. How much would the painting company charge to paint a house that needs 20 hours of labor? A house that needs 50 hours?

Calculate each runner's pace in minutes per mile. Who ran faster during the training run? Explain or show your reasoning.

• Equivalent equations