At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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).

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?