Answer:
He will have to pay 18$.
Step-by-step explanation:
First, we calculate the 15 % of the meal to know how much money he will leave as a tip:
15$ --------------------- 100%
x=15.15:100=2.25-----------15%
He will leave as a tip 2.25$. Now we calculate the sales tax.
15$ --------------------- 100%
x=15.5:100=0.75-----------5%
Now we add everything and we'll get:
$15 + $2.25 + $0.75 = 18$