Which is the best way to find the
solution to the following system of linear
equations?
3x - 2y = 18
5x + 2y = 14
A. Substitution, because you can easily
find the value of x.
B. Substitution, because you can easily
find the value of y.
C. Elimination, because - 2y and 2y are
opposites.
D. Elimination, because 3x and 5x are
opposites.

C. Elimination, because - 2y and 2y are opposites.

Step-by-step explanation:

There are 988,455,798 different groups of 5 wolverine.

This is a combination problem. We are trying to determine how many different groups of 5 can be formed out of a set of 166 objects.

The standard notation for this is:  166 C 5

This means we select 5 from a total of 166, where the order doesn't matter. Most calculators will do this for you.

To work it out manually evaluate:  166!/(5! x 161!)