The domain of F(x) is all real numbers.
This is due to the fact that the function has no undefined points or domain constraints.
3/4x - 16 = 28
+16 +16
3/4x = 44
*3/4 *3/4
x = 176/3
6 - (-2) - 3(-5) = (6 + 2) + 15 = 8 + 15 = 23
Your answer is D. the last one :)