1) The price of a large pizza decreased from $14.00to $10.00.As a result, the quantity demanded of skateboards increased from280.00to300.00.

-Part 1: Using the midpoint formula, what is the percentage change observed for the price of a large pizza? Give your answer to two decimal places.

-Part 2: Using the midpoint formula, what is the percentage change observed for the quantity demanded of skateboards? Give your answer to two decimal places.

-Part 3: What is the cross-price elasticity of demand between pizzas and skateboards? Give your answer to two decimal places.

2) At a price of $150, a cell phone company manufactures150000phones. At a price of$250, the company produces350000phones.

What is the price elasticity of supply? (Round your answer to two decimal places.)

3) Suppose that an employee at a coffee shop is willing to work 30 hours per week when she is paid $10.00per hour.When she is offered a raise to $14.00per hour, she is willing to work 40 hours per week.

-Her price elasticity of supply is.(Note: use the midpoint method and give your answer to two decimal places.)