The denominator of the second fraction can be factored as (a-2)(2a-7), then it becomes doable. You cancel the (2a-7) factors, and are left with:

Do note that you have erased the fact that a≠0 and a≠7/2, so you should always mention that.
Ad 7 to 9
you would get 16
then take 16 and subtract it by 2 you get 14.
the number is between 10 and 20.
Your answer is 14.
(32 + 18 + 13) / 3 = b
/ is divided by
you would add the boxes together and then divide them equally into the 3 displays
Answer:
Perimeter: 79 ft.
Area: 352 ft.
Step-by-step explanation:
Perimeter: 22+22+16+16 = 79 ft.
Area: 22 × 16 = 352 ft.
D: {0, 1, 2, 3}
R: {−3, −2, 2, 5}
The relation is a function.
That's the answer.