Liam has this spinner. red
green
blue
yellow
red
green
blue
red
Liam will spin the pointer one time.
What is the probability that the pointer will land on red?

3/8

There is 8 sections of the spinner and 3 are red. No need to simplify

The situation described above is an example of a geometric sequence. The common ratio is 1/2 and the initial term (a1) is 128. The second term of the sequence is the number of teams left after a week. Hence, the number after six weeks is the 7th term. To solve for the 7th term,

                                       a7 = a1 x r^(n - 1)
 
                                       a7 = (128) x 0.5^(6) = 2

Thus, only 2 teams remain after 6 weeks.