Answer:
5/100 = 0.056 sales tax
$12+$26+$125 = $163 total purchase without tax
163*0.056 = 9.128 tax based on how much she bought
$163 + 9.128 = $172.128 total amount she paid (b)
B
Step-by-step explanation:
because if you add all her purchases together then divide them by the percentage and add the 9.128 to the 163
1. Total number of comments divided by the expenses
Total number of likes divided by the expenses.
2. Yes. According to both definitions, website A has more user engagement per a single dollar expense.