Answer:
C and D
Step-by-step explanation:
see picture (plotted it to clarify both functions)
Answer:

Given:
AB = 12 in.
DF = 2 in.
FE = 12 in.
EC = 2 in.
BE = 9 in.
Step-by-step explanation:

Parallel sides are:
AB = 12 in
DC = DF + FE + EC
= 2 + 12 + 2
= 16 in.
Height:
BE = 9 in.

The factored form of 20x+35y would be 5(4x+7y). If you use the distributive property of multiplication, you can see that the expression has not changed.
It should be 23 square foot.