I am assuming x is the same thing as b.
−7.5(x−3)=3.75
-7.5x+22.5=3.75
-7.5x=-18.75
x=2.5
Answer:
C. -7x⁸ + 5x⁷ - 11x + 2
Step-by-step explanation:
5x⁷ - 8x + 2 - (7x⁸ + 3x)
= -7x⁸ + 5x⁷ - 8x - 3x + 2
= -7x⁸ + 5x⁷ - 11x + 2
Well range is the difference between the highest and lowest numbers so 20-7 is 13
F(x) = 2x + 7
g(x) = 3x² - 1
f(g(x)) = 2(3x² - 1) + 7
f(g(x)) = 2(3x²) - 2(1) + 7
f(g(x)) = 6x² - 2 + 7
f(g(x)) = 6x² + 5
The answer is A.
