9. You decide to buy some lattes for your office group from Starbucks. Suppose your local Starbucks charges a pre-tax price of $4.45 for a Grande latte and you want to buy some for office group and one for you. You also decide to purchase a pumpkin scone for you for $3.65 (pre-tax). In addition, you must pay the sales tax in Spokane of 8.7% and you want to leave 15% tip (using the subtotal and tax) for the barista. If you have $50 to spend on this how many lattes can you buy? How much will you have left over?