Question

sunscreen is priced at $10 per bottle, +8% tax. If Tonya purchases a bottle of sunscreen with a $20 bill, then what is her change

Answer 1

For this case we know that the price is 10$ per bottle with 8% of tax

We can find the tax using this:

`(10)/(100)=(x)/(8)`

With x= tax value, solving for x we got:

`x=8\cdot(10)/(100)=0.8`

Then the total price is: 10+0.8 = 10.8

Then we can find the change like this:

20-10.8= 9.2