True or false a trapezoid is a polygon, so all polygons are trapezoid. explain.

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?

27 is what percent of 108? 27 is % of 108

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?