question: what is the value of x?
(the picture should be attached)

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

How can you construct perpendicular lines and prove theorems about perpendicular lines