Answer:
C
Explanation:
Since we know the perimeter and the length the rest is pretty easy.
The reason C is correct:
2(x+15)=44
1. Distribute the 2.
2x+(2)15=44
2. Multiply 15 by 2, and subtract 30 from both sides.
2x+30=44
2x=14
3. Divide both sides by 2 and you have your answer.
x+7
4. Check your answer.
2(7+15)=44
14+30=44
44==44