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Sally bought a box of candy at a gift shop. the clerk accidentally messed up when calculating the total cost of candy with 8% sales tax. Instead of multiplying price by 1.08, she just added $1.08 to it. When she noticed the error she figured out that she would have paid the same amt. anyway. What was selling price of candy?

$135

how did u get that?

Time to dust off those old math books. This is basic algebra.

Actually, the price was $13.50

Let the price be P.

(Unfortunately, it's hard to align text here)

Required vs Actual calculation, with same result:
P x 1.08 = P + 1.08

1.08 P = P + 1.08

1.08 P - P = P + 1.08 - P (subtract the same from both sides)

0.08 P = 1.08

0.08 P x 12.5 = 1.08 x 12.5 (multiply both sides with the reciprocal of 0.08)

P = 13.5

She was charged $14.58

13.5 + 1.08 = 14.58
13.5 x 1.08 = 14.58

Sorry..must remember decimal point :(