Pls help me it’s due today

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?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

To determine the number of deer in a forest a forest ranger tags 280 and releases them back