I need help on these questions can u make sure u do all of them cuz some people just only do one problem.

12.9

Step-by-step explanation:

12.9 is 20% of 64.50

squares, rhombus, rectangles

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3