Answer:
#1) 0.08x; #2) (1+x)
Step-by-step explanation:
#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.