6cos(20πt-π)+6√3cos(20πt-π\2)

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?

(x-5)1/2+5=2 what is possible solution of this equation

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).