Question

I want too know how to start it off . And do I compare the two discounts ?

Answer 1

Given the subtotal of $55.97, apply taxes as shown below (remember that 6.75%=6.75/100=0.0675)

`55.97+0.0675\cdot55.97=55.97(1+0.0675)=59.747975`

Now, apply the discount (20%=20/100=0.20)

`1-0.2=0.8\to\text{ you will pay 80\% of the previous quantity}`
`\Rightarrow(0.8)59.747975=47.79838`

The answer is approximately $47.8 (taxes first, then discount)