Question

The selling price of a lamp was $97.50, which included a 7.5 percent sales tax. What was the amount of the sales tax?

Answer 1

97.5/100*7.5=7.3125
the tax is 7.3125
all together is 104.812
i hope that help

Answer 2

The amount of sales tax was $6.81

Explanation:

The selling price of the lamp is = $97.50

This price included the 7.5% sales tax.

Let the original price be x

This means
`x+(0.075* x)=97.50`

`x+0.075x=97.50`

`1.075x=97.50`

x=90.69

The original price was $90.69

And to know how much was the tax amount we will subtract the original price from selling price.

`97.50-90.69=6.81`

So, the amount of sales tax was $6.81