Brooke has to set up 70 chairs in equal rows for the class talent show .but , there is not room for more than 20 rows. what are possible number of rows that brooke could set up.

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).

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. chapter reference how much punch can she make if she has only 6 cups of plum juice?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.