If you wrote all of the numbers from 300 to 400 on a piece of paper, how many times would you have written the number 3

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.

How do i put 3(x+7) in distributive property