<u>Answer:</u>
<u>Step-by-step explanation:</u>
- Perimeter: 2B + 2L
- => 2(3n - 7) + 2(n + 5)
- => 6n - 14 + 2n + 10
- => 8n - 4
<u>Conclusion:</u>
Therefore, the perimeter in terms of n is 8n - 4.
Hoped this helped.

Answer:
1/2, 1/10, and 1/14 s the answer.
Step-by-step explanation:
The first set of numbers are integers, the second set is whole numbers, the fourth set is imaginary numbers, and the fifth set is irrational numbers. The third set is rational because it can be written as a fracton but not integers because they aren't whole numbers or their opposites.
Answer:

Step-by-step explanation:

I hope I helped you^_^
B. Warm air rises,and cool air sinks.