18$ for 24 ounces. rate or ratio and in simplest form

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.