Susan left the airport and drove east. Cody left three hours later driving 36 mph faster in an effort to catch up to her. After two hours Cody finally caught up. What was Susan's average speed?
Rebecca put $35,000 in an education account on the day her daughter was born. If the account earned 8.25% interest compounded monthly, what was the total in the account when her daughter turned 18? Round the final answer to the nearest cent.