What is the product of −2 1/4 and 2 1/2?

Which value of c would make he following expression completely factored? 8x+cy

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?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12