Question

Customer buys 17.01 in gas and requests one five dollar [$5] lottery ticket, two one dollar [$1] lottery tickets, and one [$3] lottery ticket. He gives you two winning tickets to be redeemed: one for ($5) and the other for ($2). How much change would he receive from a $100 bill?* 

$20.01       $72.01       $74.99       $79.99

Answer 1

gas: 100-17.01 is $82.99
lottery tickets: 5+1+1=7 + 3=10 but then plus 5+2=7 so -3
82.99-3= $79.99
the answer is $79.99

Answer 2

100 - 17.01 - 5 - 2 - 3 + 5 + 2 =
100 - 17.01 - 3 =
100 - 20.01 =
$ 79.99 <===