Question 15b

Figure 1 → 5 Figure 2 → 5 + 3 = 8 Figure 3 → 8 + 3 = 11 Figure 4 → 11 + 3 = 14 Figure 5 → 14 + 3 = 17

starting number → 5 adding number → 3

figure 29 → starting number + adding number x (figure number - 1) = 5 + 3 x (29 - 1) = 89