Y=-3.3x+614.5 please help!

Write an equation for the function that includes the points (2,100)and (3,100)

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.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq