Square root of 256 is

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.

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?