Select the correct answer. Which function is decreasing on the same interval as the function graphed here?
f(x)
61
21
-2
0
2
4
6
-2
-41
ОА.
g(1) = 3.12 - 121 + 18
O B. ker) = -2:2 - B1 + 5
OC. hir) = 2:2 + 1 + 3
OD. (I) = -12 + 41 - 4

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For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Hi, can anyone show me how to do this problem? 100 points for this. in advance