for the Brittany question in total, I got $45.5
tax = $3.4788
discount = $ 8.028
frozen yogurt = $ 50.0412
so I added the frozen yogurt and tax first and I got $53.52 and then I subtracted the discount and I got $45.5
for the Jordans question
Savings account = $ 40
headphones plus tax= tax=$6.9965 + $99.95=$106.9465
2 shirts plus tax = tax =$1.2593 + $17.99= $19.2493
add everything in total= $166.1958
$200-$166.1958 = $33.8012
so he has left $33.8012