Answer: get in through 4 stages absorption, distribution, metabolism, excretion.
Explanation: it is absorbed into blood stream through needle, lungs, mouth etc. then then circulatory system distrustes the drug throughout body. Then is metabolized by the body.
The barriers to exercising are classified as excuses. Excuses like ones physical attributes shouldn't be an excuse to not exercise but a motivator. Time management is another barrier that is classified as an excuse. Even if someone has school or work there is a part of the day that can be used for exercise. Exercising doesn't always have to be an hour in the day.
2x+1.5x+9 would be the equation to use here
B, A, C because the people are at the tournaments for a reason. The students next because they most likely like sports and last the department store