Answer :
If you set up the problem and put 500 / 3 = 12,000 / x, you could cross multiply. 12,000 times 3 = 500 times x.
36,000 = 500x Now divide both sides by 500.
72 = x
The answer is B.72!
36,000 = 500x Now divide both sides by 500.
72 = x
The answer is B.72!