What are the terms, Coefficients, Constants, Variables, Like Terms, of 5a + 2 - 7

What is the slope of a line that is perpendicular to y = 3x + 1

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?

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled