$(2$ Tata Group has many subsidiaries. The managers of two subsidiaries, ibrahim and Maria, come together to make a deal on the price of decorative lamps. Ibrahim can purchase the lamps from another company at $$79.$ Maria can sell the lamps at $$60$ and the variable cost of the lamp is $$48.$ a$.)$ If Maria's company has excess capacity, what might be the deal price? b$.)$ If Maria's company doesn't have excess capacity, what might be the deal price? c$.)$ If ibrahim wants to buy $1500$ special lamps and wants some special additions to the lamp which cause $$6$ increase in cost$.$ Maria needs to forgo the sales of $2000$ regular lamps if she accepts this offer. What is the minimum transfer price for Maria?

$14$:$25$