The computer lab at a high school ordered 26 packages of cd's . there were 50 cd's in each package. how many cd's did the computer lab order?

A(t)=728(1+0.04)^t how much money did aditya originally invest

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).