.h.i. i think i know the answer
10 more times
On Monday the rover needed to charge 22 times and on Tuesday 12 times.
So the answer is 22-12=10
The circumference of a circle is PiD, or 2(3.14)(r).
The radius is half the diamater.
Let's solve with the diameter.
18 • 3.14 = 56.52 inches.
I hope this helps!