The area of one piece of pizza is 9π
in2
in
2
.

If the pizza is cut into eighths, find the radius of the pizza.

A
4.56 inches
4
.
56

inches

B
9 inches
9

inches

C
8.48 inches
8
.
48

inches

D
14.24 inches
14
.
24

inches

Each weekday davina rides her bike from her house to school. after school, she rides to the library. then davina takes the same route to get home. these locations are shown on the grid below, where 1 unit on the grid represents 1 kilometer. how many kilometers does she ride each day? 10 16 20 32