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Helppp i have this test due soon :C

Helppp i have this test due soon :C-example-1
User Margus
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Answer: D.)

Step-by-step explanation:

Add the rates. 3:1 (3+1)=4

multiply it to the rate. 3(4), 1(4) = 12 and 4

Side a is 12 inches long and side b is 4 inches long.

User LeeWay
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