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!
