What are the binary representations of the following decimal numbers?
18, 27, 42

Find the variance and standard deviation for the data
35, 45, 30, 35, 40, 25

[(- 2)^(-2) ]^(-3)  is equal to
1) 64                    2)
3) - 64                  4)

Which one of the following is not a postulate for geometry?
1) For any two points there is exactly one line that contains them.
2) For any three non-collinear points there is exactly one plane that contains them.
3) For every pair of parallel lines there is exactly one plane that contains them.
4) For every pair of points there is a unique positive number which is the distance between them.

Find a formula for the general term of the sequence by looking at the first five terms of the sequence.

i) 25.034                                 ii) 25.304

iii) 25.64                                  iv) 25.0034

If 5 P(n,3) = 4P(n +1,3), then n is
1) 10                   2) 11
3) 12                   4) 14