Solve using solver, please show equations for cell

Allens Co Company produces beds and desks for college students. The production process requires carpentry and varnishing. Each bed requires 6 hours of carpentry and 4 hour of varnishing. Each desk requires 4 hours of carpentry and 8 hours of varnishing. There are 36 hours of carpentry time and 40 hours of varnishing time available. Beds generate $30 of profit and desks generate $40 of profit. Demand for desks is limited so at most 8 will be produced. Suppose the company can purchase more carpentry time for $3.00, should it be purchased and how much can be bought before the value of the additional time is uncertain? Develop the model, implement it using Excel Solver and base your response on the Solver output