Q30: From May 1 to May 30 in the same year, the balance in a checking account increased. What was the balance in the checking account on May 30 ? (1) If, during this period of time, the increase in the balance in the checking account had been 12 percent, then the balance in the account on May 30 would have been $504. (2) During this period of time, the increase in the balance in the checking account was 8 percent. | 
