Answer: a
Step-by-step explanation: edge 2020
The birdcage floor is 15 inches.
Circumference = 2piR
47.1=(2)(3.14)(R)
47.1=6.283R
Radius equals 7.496
7.496 times 2 equals 15
It took 4 hours for Kayleen to get to Boston, so we do 280/4 = 70 miles per hour.
---
Hope this helps!
7 1/2
you go to both sides of the graph and count in till u get to the middle