Lauren wants to buy 3 shirts at 15.00 each. at home, she calculates the total cost as 46.20 using the sales tax of 8% . at the store, the cashier tells lauren the total cost is 48.60 . who is wrong and what mistake did he or she make ?

Answer

Lauren is wrong. Maybe she added incorrectly??

Step-by-step explanation:

3 * 15 = 45

45 * 8% = 3.60

45.00 + 3.60 = 48.60

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)