Check Writing Fees. Randy, a student, has $$246$ to deposit in a new chequing account, but Randy knows he will not be able to maintain a minimum balance. He will not use an ATM card, but will write a large number of cheques. Randy is trying to choose between the unlimited check writing offered by South Trust and the low per$-$check fee offered by Sun Coast. How many checks would Randy have to write each month for the account at South Trust to be the better option? $($Hint: Use the table, $,$ to determine the best bank for Randy.$)$