A square field had 3 m added to its length and 2 m added to its width. The field then had an area of 90 m2, Find the length of a side of the original field.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Are triangles the congruent? write the congruency statement. what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Acompany that makes? hair-care products had 5000 people try a new shampoo. of the 5000 ? people, 35 had a mild allergic reaction. what percent of the people had a mild allergic? reaction?