Please i beg you help me this is super urgent and show how u do it!!

Ps this is not a multiple choice, all u need to do is solve the two questions. However if you can't u can just solve one of them. Thank you.

There are 72 students in the seventh-grade class and 66 students in the eighth-grade class at DEMS

a. What percent is the seventh-grade class of the eighth-grade class at DEMS?


b. Mrs Barnhouse will have to increase the number of eighth-grade teachers next year if the seventh-grade enrollment exceeds 110% of the current eighth-grade enrollment. Will she need to increase the number of teachers? Explain your reasoning.