The answer is 78.5 because the formula to find area is πr2 so the radius is 5ft π is 3.14 so 3.14 times 5 and the 2 on top of r means the u have to do 5 times 5 which is 25 now it's real simple do 3.14 times 25 which is 78.5 I HOPE THIS HELPS=)
X will be between 21 and 24
Answer: 30
Step-by-step explanation:
Aaron: 166 times in 120 seconds, or 83 times in 60 seconds
Callie; 88 times in 60 seconds
Emma: 48 times in 30 seconds, or 96 times in 60 seconds
Galen: 22 times in 15 seconds, or 88 times in 60 seconds
Callie's and Galen's heart rates are equivalent.
