#1) 0.08 is read as 8 hundredths. This can also be written as 8/100. Percent means out of 100; this means 8/100 is 8%. This means 0.08x is taking 8% of the original amount; this would represent the sales tax that is paid.
#2) In this problem, x is the percent of markup written in decimal form. This means that adding 1 to this number gives us 100% plus the percent of markup. This will give us the percentage of the original price that was paid, since we are paying 100% of the original price plus the markup.
I can give you the answer only for the first question, but this one will definitely help you and bring you the points you need. The amount of tax that is paid on the computer is <span>0.08x, where </span>x is the original cost and 8% is the tax rate. Hope you still need because that's really works.
