Khalid purchased 4 items at the dollar store. He was surprised that the total did not equal $4.00. Brian did not realize that the store required 5 1/2% sales tax. How much was Brian’s total bill including sales tax?

Answer:
B. $4.22
Step-by-step explanation:
51/2 % can be put into decimal form as 0.055
To find what 5 1/2% of $4 is you simply need to multiply 4 by 0.055
which makes $0.22
add that to $4 and you have your answer