If 20% of the science students at central high study on physics, 25% study chemistry and the rest study only biology, what is the smallest number of science students who could be studying biology?

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Which graph shows the solution to the system of linear inequalities? y-4t< 4 y