Step-by-step explanation: The reason it would be $11.51 is because when you add the 3 dollars and 99 cents along with the 7 dollars and 17 cents, you come up with $11.16 but since the tax is 5% it adds 0.35 cents more, which ends the total cost with $11.51
Answer: 8 Explanation: Without the discount, 8 frozen yogurts for $4 will come to $32. Deduct $2 from the total cost (32-2), and now they're paying $30.