Answer:
10 pages
Step-by-step explanation:
To find 20% of 50, multiply .20 x 50
.2 × 50 = 10
Answer:
(x+2)^2=-1
Step-by-step explanation:
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Answer:
x=10
Step-by-step explanation:
The two triangles are similar since each triangle is the same shape of right triangle but different sizes. To find x, write a proportion between two equal ratios of side lengths.

Solve by cross multiplying.
28(3x) = 20(4x+2)
84x = 80x + 40
4x = 40
x=10