Answer:
Step-by-step explanation:
a. If sales tax was 50%, we would divide the sales tax dollar cost ($7.14) by a half to get the original cost.
Instead, lets divide $7.14 by 0.051 (the sales tax percentage in decimal form) to get the original.
7.14/0.051 = $140
Great, so we know that the original cost is $140.
b. Now you probably live in epic country (god bless) where you don't add sales tax to things in the advertised price.
140 + 7.14 = $147.14 is the price you have to pay.
