Please help! would really appreciate it.

P = 40 units, A = 60 units

Step-by-step explanation:

Last side is 8 demonstrated in the work below. To find perimeter add them up so 17 +15 +8 = 40. To find Area its L*W/2 so 15 *8  = 120/2 which is 60.

(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