What is .25 written in it's simplest fraction form

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick