6
Like how

= 36
Square root does the opposite.
Edit: my mistake, it is 6
Answer:
$10t=m
Step-by-step explanation:
If for each hour is $10.
She would earn the number of hours times $10.
Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m. m=40
The radius of the circle would be 10.19 I hope this helped!! :)
I'm going to have to say C.