Does either item below contradict the statement : “the sum of two rational numbers is a rational number

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?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Which two undefined geometric terms always describe figures with no beginning or end?