please help

Thank you!!

explain to me how solve it.

Figure 4-11 shows an example of an assembly balance problem for the toolbox production Hours Pieces per Unit per Hour Rounded Up 2 2 2 Time Standard .306 .291 .260 356 310 .555 -250 .415 250 SSSA1 SSAI SSA2 SAI A2 A3 SA2 SA3 P.O. Total Number of Stations 1.77 1.68 1.50 2.06 1.79 3.20 1.44 2.40 1.44 2.90 Average Time 153 146 .130 .119 155 139 .125 .138 .125 .167 Percent Loaded 92 87 78 71 93 83 75 83 75 100 2 4 2 3 2 3 25 .00557 .00557 .00557 .00835 .00557 .01113 .00557 .00835 .00557 00835 .06960 180 180 180 120 180 90 180 120 180 120 501 3.494 Figure 4-11 Initial assembly line balance, 11. Rebalance Figure 4-11 by adding a fourth packout person and make a subassembly out of SA3. Then answer the following: a. What is the total hours per unit? b. How many units per shift will be made at 100 percent? c. How many people are now used? d. What is the new 100 percent station? Is this a better balance? f. How much money is saved if you produce 700,000 units per year and the employees are paid $10.00 per hour? e