Question

tommy took one of his friends out to dinner. the dinner cost $100 and he paid 3% sales tax. if tommy left an 18% tip on the $100, how much in total did he pay?

Explanation:

Step1: Calculate sales tax amount

$\text{Sales Tax} = 100 \times 0.03 = 3$

Step2: Calculate tip amount

$\text{Tip} = 100 \times 0.18 = 18$

Step3: Sum all costs

$\text{Total Payment} = 100 + 3 + 18 = 121$

Answer:

$121$