Double and double again

QUIZ #2 is based on Chapter 9 in your textbook, page 155, Figure 9.7 (Top of Page)

Study the following four models in Figure 9.7
(a) Double and double again
(b) Double and one more set
(c) Half then double
(d) Add one more set

Your task is to write your own example of each of the four models in Figure 9.7, p.155
Different than the models given.

Sample Solution