Answer it correctly please. I will rate accordingly with multiple votes. This is my last attempt. Please do it correctly...

Suppose that an employee at a coffee shop is willing to work 30 hours per week when she is paid $13.00 per hour. When she is offered a raise to $15.00 per hour, she is willing to work 40 hours per week. Her price elasticity of supply is :l. [Note: use the mid point method and give your answer to two decimal places.)