CAN SOMEONE HELP ME WITH THIS ONE QUESTION PLEASE AND THANK YOU :D

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax