At the start of the week, an account had a balance of –$12.67 (negative). So far during the week, $20
has been deposited into the account and $13.47 has been spent from the account. At the end
of the week, the balance needs to be at least $25 in the account. What is the minimum amount
of money, in dollars, that still needs to be deposited into the account before the end of the week?