Gail works in a flower shop, where she produces 10 floral arrangements per hour. She is paid

Question:

Gail works in a flower shop, where she produces 10 floral arrangements per hour. She is paid $ 10 an hour for the first eight hours she works and $ 15 an hour for each additional hour she works. What is the firm’s cost function? What are its AC, AVC, and MC functions? Draw the AC, AVC, and MC curves.