Classify each function into one of the three categories: exponential, linear, or neither.
f(x) = -2(8)* [Select)
f(x) = 15 – 2 [Select ]
f () = {(3)" [Select ]
f(x) = 62? + 9 [Select]
f (x) = 4(1.6) ło [Select)
f(x) = 2 (18 – 2) (Select]
f(x) = 716 + 2x
[ Select)
Please help

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?