At Footlocker, Mark buys a pair of sneakers for $79.89 with a discount of 35%. There is also a sale of 2 shirts for $19.89. Mark buys a shirt. The sales tax is 6%. He also wants to give the sales person who helped him a 5% tip of what his total bill is with tax and discount included.
a) How much money does he spend on Footlocker? Justify your answer.
b) What if the discount for the pair of sneakers is now 32 1/2 %. What would be the new amount that Mark spends at foot locker?

Question

At Footlocker, Mark buys a pair of sneakers for $79.89 with a discount of 35%. There is also a sale of 2 shirts for $19.89. Mark buys a shirt. The sales tax is 6%. He also wants to give the sales person who helped him a 5% tip of what his total bill is with tax and discount included.
a) How much money does he spend on Footlocker? Justify your answer.
b) What if the discount for the pair of sneakers is now 32 1/2 %. What would be the new amount that Mark spends at foot locker?