Write vertically: 21 x 17 =

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?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1