In class there are 12 girls and 11 boys. Write each ratio 3 ways

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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).