<h2>
Answer:</h2>
<u>The area is</u><u> 168 yd²</u>
<h2>
Step-by-step explanation:</h2>
The area of Trapezoid is given by
A= (a+b)/2 * h
Putting the values
A = (5+23)/2 * 12
A = 168 yd²
<span>A study found that in a certain region housing prices had decreased by half over a ten year period. A dollar bill is used to depict the initial average cost of a home in this region. A second dollar bill to depict the average housing price at the end of the ten year period should be <em>ONE-FOURTH</em> the <em>AREA</em> of the original bill. </span><span />
V = L * W * H

= 15 * 12 * 10

= 1800

= 12 * 6 * 3

= 216

= 1800 + 216

= 2016
Hope that helps and you can remember the formula and steps for future use!
Step-by-step explanation:
all work is shown/pictured