DA ANSWER CHILDRENS:
$40.02
STEP BY STEP EXPLANATION BOIZ:
Ok so you would turn the 15% in a decimal
15% = 0.15
then you would multiply 34.80 and 0.15 to get 5.22
so 5.22 is the tip
you would add 34.80 and 5.22
which gives you 40.02
HOPE DIS HELPED
(o゚v゚)ノ