21 divide by 4 is 5.25. She travels 5.25 miles per hour. 42 divide by 5.25 is 8. It would take 8 hours for Shelly to bike 42 miles.
10-2/3=9 1/3 if you estimate that it would be 9
next it is 3 - 1/8= 2 7/8 estimate it would be 3
so 9 x 3= 27
6 semicircles = 3 circles
The formula of the area of a equilateral triangle:

We have a = |AE| = 3cm. Substitute:

The formula of the area of a circle:

We have 2r = |AE| =3cm → r = 1.5cm. Substitute:

The area of the figure:

Answer:
c, i think
Step-by-step explanation:
Is it either C or D not 100% but it is one of those hope this helped