If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

a) 6 – 3 – (4 + 3)2

b) 6 – 3 – (4 – 32)

c) 6(3) – 4 + 32

d) 6(3) – 4 – 32

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts. which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?