Answer:
<h2>108 yd²</h2>Step-by-step explanation:
The formula of an area of a trapezoid:
<em>b₁, b₂</em><em> - bases</em>
<em>h</em><em> - height</em>
From the picture we have
Substitute:
The mean age of 10 people in a room was 16. When Toby walked into the room, the mean age went up to 18.
1 answer:
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