Question

Zack bought a coat for 69.78. He paid with a a $100 bill and received $26.73 in change. How much was the sales tax?

Answer 1

The sales tax amounted to `$3.49`

Explanation:

If we represent the sales tax as `x`, it can be calculates as the difference between `$100` and the cost price plus change received. The equation will be:

`x=100-(69.78+26.73)`

Add the numbers in the brackets and then subtract that from `100`.

`x=100-96.51`

`x=3.49`