I really need help with this

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.

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

The image of abc after a reflection across eg is abc