Step-by-step explanation:
Radius of a cicke is calculated by 2 pi r
Equation is found by y=mx+C
Answer:
Is a solution
Step-by-step explanation:
Just do the division 
To convert a percent to a decimal, you divide by 100.
60% = 0.60
If x is the unknown number, the word is means equal
84 = 0.60 * x
Divide both sides by 0.60
84/0.60 = (0.60/0.60)* x = x
140 = x