Answer:
B cuz both can be divided by 7
Answer:

Step-by-step explanation:
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Given:

---------->>>>
Collect like terms.

---------->>>>
Simplify

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Hope this is helpful.
Answer:
32
Step-by-step explanation:
First you're going to change 20% to a decimal which would be 0.20
Next, multiply .20 by 40
You should get 8
Subtract 8 from 40
You're answer is 32
Answer:
should be 30
Step-by-step explanation:
triangles have 180°
if x is 30
2x is 60
the other angle is 90
add those all together and you get 180°