Answer:
31.2
Step-by-step explanation:
156 * .2 = 31.2
A. x=6 B. x=4.5 C. x-35 D. x=13
For A and B, divide the numbers you have. For C and D, multiply the numbers you have.
9/4
(f+g-k)(x) means to add the equations f(x) and g(x) then subtract k(x)
2x^2 + 3x + 4x - 9 = 2x^2 +7x -9
2x^2 + 7x - 9 - x^2 -7x = x^2 -9
The answer is : x^2 - 9
