For the annual rate of depreciation of 31%, find the corresponding decay factor
a. 0.13
b. 0.69
c. 1.31
d. 1.69

i think c. but don't trust it.

step-by-step explanation:

there is no grid

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153