I need help with this question! i'll give brainliest to the first answer

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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?

What is the lcm of 16 and 40 ? 24 and 40 ?