Referring to the equation for earnings on a checking account (I = rB − sx − f), where, if r = 0.0095, B = $2,000.00, s = 0, x = 28, and f = $4.00, what are the customer’s earnings for the month if her minimum balance is $2,000.00?


$8.00


$21.00


$15.00


$7.00