Answer:
D
Step-by-step explanation:
the the 5 minus the 12 and the 0 minus the negative one all finds it way. back to the equation d
300 + 0+ 1, 200 + 50+ 6, 800 +70 + 8.
Well, if the radius is 10, then the circumference is

What's the unit? Either way, 22 rev. per minute means each minute you go by

units per second. Now you got the linear speed, just find out the time by dividing the distance by the speed!
So, what's the unit for the radius?
By dividing it by a number that = to it