Answer:
3x=20
Step-by-step explanation:
Perimeter is just all the sides of a shape added. So, x+x+x=20 or, more simply put, 3x=20.
B. because on a square everything is equal
Answer:
6+18x
Step-by-step explanation:
=6(1+3x)
=6×1+6×3x
=6+18x
Answer: 
Step-by-step explanation:
The greatest GCF is 5 because 5 goes into 15, and 10. Therefor, the answer would be 2/3.
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Answer:
24
Step-by-step explanation: