Your answer will be choice A recall complementary angles total 90 degrees and supplementary angles total 180 degrees
The third one
3(x+5) = 3 * x + 3 * 5
<h3>The height of the tree is 55 feet</h3>
<em><u>Solution:</u></em>
Let,
Height of tree = x
Shadow of tree = 40 feet
Height of man = 5.5 feet
shadow of man = 4 feet
Set up a proportion comparing the height of each object to the length of the shadow.

Therefore,

Thus height of the tree is 55 feet
Rember this is simple
30 Are in the auditorium
so the first row has 20 seats, the secound row hass 22 and the third 24 just sub and then - with 30