Answer:
$320
Step-by-step explanation:
400*0.8(decimal form of 80%) = 320
Answer: 907.92 ft²
Step-by-step explanation:
1. To solve this problem you must apply the formula for calculate the area of a circle, which is shown below:

Where r is the radius of the circle.
2. You know the radius of the circle B, therefore, when you susbtitute it into the formula, you obtain that the area of the circle B is:

Answer:
Step-by-step explanation:
Answer: 5 times
Step-by-step explanation:
The missing side length should be 22. Add 13.5 to 14.5 and you should get 28. Subtract 28 from the total perimeter (50) to get 22.