78- x = 61 can you help me figure what this equals i am not for sure which answer is right. Answer-

A. X = 17

B. X = 13

C. X = 9

D. X = 7

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

For what value of (y) is 3^3/3^y =1/9

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?