divide number of balls by number of matches
42,000 / 650 = 64.615 = 65 balls per match
The debt-to-credit ratio of a credit account is the ratio of the balance to the credit limit:
... balance/credit limit = 245.78/3500 = 0.07022... ≈ 7.02%
The appropriate choice is ...
... A.) 7.02%
