Question

Paul had 30 candy bars. After giving each of his p friends 3 candy bars, he still has some left. Select two expressions that represent the number of candy bars Paul has left.

Answer:
3(10-p)
30-3p
3(p-10)
3p-30​

Answer 1

30-3p and 3(10-p)

Explanation:

We know that he starts with 30 candy bars.

Now, we know that he has p friends, and that each friend received 3 candy bars.

Therefore, the answer is 30-3p

However, if you divide 30-3p by 10, you get the expression 3(10-p)

Thus, either answer is acceptable.