Directions: Solve the following word problems and find the unknown. Write your concise solution and answer in a paper. 1. The mass of a rectangular sheet of wood varies jointly as the length and the width. When the lengte is width is 5 cm? 30 cm and the width is 10 cm, the mass is 600 grams. Find the mass when the length is 30 cm and the width is 5 cm?