please answer both step by step

1. Single deep racks are being considered for a storage area. The racks hold three pallets wide by four pallets tall (total of 12 pallets). Eight feet aisles are required between single deep racks. Assume a storage area holds pallets that are 42 x 42" X 5" and the pallets can hold loads that are 42"x42"x48. All gaps and clearances between beams and pallets are 2" wide and all beams are 4" wide. In the case of back to back racks, an 8" flue is required. a. (2) Calculate the cube/space utilization of this system (clearly state any other assumptions made to calculate the cube utilization). b. (2) Calculate the cube/space utilization for a double deep rack with similar dimensions to the single deep rack. c. (1) Draw an example overhead view of the single and double deep racking systems and specify if any special material handling equipment would be required for single or double deep storage racks. 2. Consider all dimensions of the rack system in question one but for the case of a flow through or pallet flow rack. Answer the following questions; a. (2) Draw an overhead, side, and front view of the rack, include aisles. b. (2) Calculate the cube/space utilization for this racking system. Assume that six feet of aisle space is needed on either end of the pallet flow rack to load and unload pallets. c. (1) Create a table with the three racks in this homework as the rows and two columns (space utilization and accessibility). Rank (1, 2, 3 where 1 is best and 3 is worst) each rack in terms of space utilization and accessibility