HELP ME, Which number has the greatest absolute value?

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost