The length of a rectangle is 59 inches greater than twice the width. If the diagonal is 2 inches more than the length, find the dimensions of the rectangle.

A 20-ft by 40-ft rectangular swimming pool is surrounded by a walkway of uniform width. If the total area of the walkway is 256ft^2, how wide is the walkway?

A boat traveled a distance of 152 mi and then came right back. If the speed of the current was 7 mph and the total trip took 6 hours and 20 minutes, find the average speed of the boat relative to the water.