Jack's pet dog has been prescribed 40 mg of a medicine per day. each pill of the medicine has 12 mg of the medicine. jack has to give his dog a total of 20 pills. if jack gave his dog medicine for x days, use the expression below to interpret the situation. : 12 20 − 40x part a. what does 240 represent? part b. what does the 40x represent? part c. what does the entire expression represent?

a. 240 represents the 12 mg multiplied by the 20 pills.

b. 40x represents the the mg of medicine per day, and how many days Jack has to give the medicine to his dog.

c. the entire expression represents how to find out how many days Jack gave his dog medicine.

gdp is the best phrase!

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.