Q7) Agold shop keeper described variable cost RO 600 per necklace including materials, labor and finishing The fixed cost is RO 120000 for equipment and setup of the shop. Also, he described the total revenue function R(x) - 2000x - x, where x represent the number of necklaces made and sold.

a. Determine the number of necklaces that should be made and sold to maximize profit. 7 Marks)

b. Determine the number of necklaces that should be made and sold to maximize profit. (3 Marks)

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Q8) Suppose that the demand curve for Banana in Oman during the year 2015 was = 10p - 70 and the supply curve was q, = 245 Sp.

a. Find the equilibrium Point for Honda cars in Oman. (6 Marks)

b. Find the choke price for Banana. (4 Marks)

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Q9) a. Ifa company has total revenue function is given by R(x) = 5x -+95x - 100.

a.Find the marginal revenue when x = 50 units (6 Marks)

b. What principal will amount to RO 2560 in 4 years at 7% simple interest? (4 Marks)

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Q10) How long will it take for a principal to triple at 6.95% compounded semiannually? (10 Marks)