PLEASE SHOW WORK FOR NUMBER 2 (a and b)
WILL GIVE BRAINLIEST ANSWER :)

a)  Acetaminophen is used 5 times as often as ibuprofen.

b)  The ratio is : 1/5

Step-by-step explanation:

The percentages shown in the pie-chart on how many times a medication is used are:

Ibuprofen:  9%

Acetaminophen: 45%

Aspirin: 46%

Question a) reads: How many times as often was acetaminophen used as ibuprofen?

So we compare: Acetaminophen / Ibuprofen = 45% / 9% = 5

Acetaminophen is used 5 times as often as ibuprofen.

Question b) reads;  What is the ratio of ibuprofen used to acetaminophen used?

So now the ratio is inverted, and we do: ibuprofen / acetaminophen = 9% / 45% = 1/5