Please help 7th grade math will medal
Neil took his family of five out to dinner at HogTastic Pit BBQ. They all ordered the buffet and drink at $12.80 each. Neil left a 15% gratuity for the waitress on the after-tax bill. Based on a tax rate of 7.5%, Neil ended up paying a total of $_____ for dinner.

Question

Please help 7th grade math will medal 
Neil took his family of five out to dinner at HogTastic Pit BBQ.  They all ordered the buffet and drink at $12.80 each.  Neil left a 15% gratuity for the waitress on the after-tax bill.  Based on a tax rate of 7.5%, Neil ended up paying a total of $_____ for dinner.

pooja195 · Answer

12.80x 5 = 64
64 x 1.075(tax plus the original bill before tax)= 68.8
68.8 x 1.15(gratuity plus the bill after tax) = $79.12
Neil ended up paying $79.12 for dinner

pooja195 · Answer

Also welcome to openstudy!