The first discounted price is given through the equation, discounted price = ($3.45)(1 - 0.20) = $2.76 Then, due to the privilege of being a Coles-Myer discount card holder, another 7.5% discount is given. Such that the final price would be, final price = ($2.76)(1 - 0.075) = $2.553 The total amount saved up is equal to, $3.45 - $2.553 = $0.897
