How do I put this on excel

112 93% + A bank is retrofitting part of its vault to hold safety deposit boxes. It plans to build safety deposit boxes approximately 6 feet high along the walls on both sides of a 20-foot corridor. Hence, the bank will have 240 square feet of wall space to use. It plans to offer two sizes of safety deposit box: large and small. Large boxes (which consume 122.4 square inches of wall space) will rent for $40 per year. Small boxes (which consume 72 square inches of wall space) will rent for $30 per year. The bank believes it will need at least 350 total boxes, at least 80 of which should be large. It hopes to reaximize revenue for safety deposit boxes. 1. Define the decision variables, the objective function and the constraints. 2. Use Excel Solver to find the number of boxes of each size which the bank's design should provide. 3. The bank now wants to add a mini-size box, which will rent for $17 per year and consume 43.2 square inches of wall space. The bank still wants a total of at least 350 total boxes of these, at least 100 should be