If m2 DOC = 44º and m2 COB = 80°, find the measure of the indicated arc
in circle 0.
C
E
mDB = [? 1°

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

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years