Factories x^3 -3x^4 -9x -5 Steps Please Thanks

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Solve 2^x=32 and rewrite this equation in a logarithmic form

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.