Answer:
The second step because she distributed within the parentheses without adding the negative sign to 13
25.13ft
Step-by-step explanation:
The length of the fence will be the circumference.
I believe it is the first option. Not entirely sure because when it says it wants a representation, I believe it wants a graph (?)
The prime factors of 15 are: 1,3,5,15
The prime factors of 21 are: 1,3,7,21
The prime factors of 38 are: 1,3,13,39
The prime factor of 42 is : 1,2,3,6,7,14,21,42
5 is the correct answer