A clothing store used the sign shown below to advertise a discount on shirts. **DISCOUNT** BUY 2 SHIRTS, GET 50% OFF THIRD SHIRT. *** Olivia wants to buy three shirts, which were originally priced $42.45 each. The store will discount the price of the third shirt and then apply a 8.25% tax to the total cost of all three shirts. Including the tax, what is the total cost of the three shirts? 5 points