Keisha is comparing offers from two banks on checking accounts that include debit cards. Bank A charges a $45 monthly fee for a checking account and debit card, with unlimited transactions. Bank B charges a $20 monthly fee for a checking account and debit card, plus $0.70 for each transaction. Suppose Keisha makes 40 transactions in a given month. Answer the questions below. (a) How much would she pay at each bank for the given month? Bank A: $ Bank B: $ (b) For the given month, which bank is cheaper and by how much? Bank A BankAis$cheaperthanBankB. Bank B BankBis$cheaperthanBankA.