6.3 perform the computations below and report with the answer rounded to the proper number of significant digits. (a) 74.6/x (b) 74.6 y (c) 74.6z (d) 74.6- x (e) 74.6+3.2y2 (x-2x+0.5 (g) (1,0- y)/(1.8 +y) (h) z - z- z+ 3.00 (i) 2.33x0.5-0.050x for x 2.377 for y 162.3 for z 1.66 for x 1.606 for y 18.05 for x 0.25 for y 0.36 for z 0.91 = for x 16.33 (j) (1.92x 3.60)(32.35 -2.66x) for x 4.592 tueing taa ga 6.4