Asuitcase is pulled 20 feet along a at sidewalk with a constant upward iorce of 80 lb at an angle of 23" with the horizontal. Calculate The work done. The work done is 1473 foot-pounds. (Round to the nearest fontpound as needed.) Find 1l1e area at the parallelogram that has adjacent sides u = 3i Ej + k and v = 3] k. 1 The area of the parallelogram is 912 _ [Type an exact answer, using radicals as needed}