Point S is the ? of UT U
-
s
T
O
A distance
O
B. midpoint
C. angle bisector
O D. perpendicular bisector

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