This is true.
It comes from the same side interior angles theorem which says that same side interior angles are supplementary, only if the lines are parallel.
Answer:
Proved
Step-by-step explanation:
Given

Required
Prove
On the right hand side, we have:

Rewrite:


Apply law of indices


Express 6 as 3.5 + 2.5

Open bracket

Proved
Answer:
24F is a increase I belive and 39F is a decrease
remember a coefficient is the number in front of the variable
the coefficient in the fifth term is 9 since 9 is a number.