X = text message you send or receive
39.99 + 0.15x <span>≤ 45
0.15x </span><span>≤ 5.01
x </span><span>≤ 33
the maximum </span>text message you send or receive is 33
39.99 + 0.15(33) = 44.94
3 is the answer when u subtract 15- 13
Dy/x^2
And you should put (3x^2-1)^2 instead y
