Question

A local shop must charge sales tax on
each item. A $5 item costs $5.30 with
tax. A $6 item costs $6.36 with tax. How
much does a $20 item cost with tax?​

Answer 1

Answer: $21.20

Step-by-step explanation:

First, we have to figure out what the tax is.

5 has to be multiplied by an unknown number(tax) to get 5.30

5x=5.30

Divide by 5 on both sides

x=1.06

So the tax is 6%

Multiply 20 by 1.06

20*1.06=21.2

So a 20 dollar item with tax costs $21.20

Hope this helped!