Answer:
answer D
Step-by-step explanation:trust me
To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price. The result is the total cost—this is what the customer pays.
Greater than 27 : 28 29 30
less than 30 : 29 28
9 ones : 29
the answer is 29
hope this helps! :))))