Answer:
<h2>a = 16</h2>
Step-by-step explanation:
Look at the picture.
The formula of an area of a trapezoid is:

- bases
- height
We have:

Substitute:

<em>divide both sides by 8</em>

The correct answer are 1 , 3 , 4
7 x 300 = 2,100 hope i helped and there are 21 hundreds in 2,100
0.5% is 5$ so 5$ x 12 = 60 60 x 3 is 180 180 is your answer