The length is 3 times longer than the width (7)
3 x 7 = 21
the length is 21.
To find perimeter, add all sides together:
21 + 21 + 7 + 7 = 42 + 14 = 56
56 ft is your answer
hope this helps
Answer:
1. 22000 millimeters
2. 1.5 grams
3. 15 centigrams
4. 5300 milliliters
5. 0.025 decagrams
6. 0.0083 decimeters
7. 0.027 decaliters
8. 28.7 millimeters
9. 5.4 decigrams
10. 1000 milligrams
Step-by-step explanation:
Answer: 15
Step-by-step explanation: Use the formula: 
Remember
should always be the hypotenuse or the longest side.
---> evaluate the exponents
----> subtract 12544 to the other side
---> take the square root of both sides

GCF = -c^2d^3
Factors are -c^2d^3(8c^3d^3 + 27c^2d + 24)