The pen company can make 1000 pens in a single day for a cost of $55. If each region of the country needs 90 pens, how much should each region expect to spend on pens?

Multiply. write your answer in simplest form. 3/8 x 5/7

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).

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