Answer:
B.
Step-by-step explanation:
if x is 3 then you just substitue every instance of x as 3. 2(x-4) + 3x - x^2 =
2(3 - 4) + 3(3) - 3^2 =
6-8 + 9 - 9 =
-2
It's (E) ..................
128 units^3
$27.80
69.50 - 40% = 27.8
hope this helps :)
