The scale factor is 4 and for the perimeter just use the distance formula
Answer:
n = 5
Step-by-step explanation:
Given
n + 16 = 21 ( isolate n by subtracting 16 from both sides )
n = 5
Answer:
5 + 14 and 12 + 7
Step-by-step explanation:
Remark
If you just want the way this would be written out the answer is

Note
1. The quotient is the answer of a division problem.
2. The number is represented by the letter x