Evaluate the following.a. A salesperson whose annual earnings can be represented by the function1P(x) = 40000 +x, where x is the won value of the merchandise he sells. Hisson is also in sales and his earnings are represented by the function S(x) =x. Find (P + S)(x) and determine the total family income if each of25%3D125000 +20them sells 15 000 000 won worth of merchandise.b. The owner of a small restaurant can prepare a particular meal at a cost of 100won. He estimates that if the menu price of the meal is x won, then the numberof customers who will order that meal at that price in an evening is given by thefunction M(x) = 300 – x. Express his day revenue, total cost and profit on thismeal as functions of x.c. Let f(x) = x² + 5x + A and g(x) = 2x + 7.i. Find the value of A so that (f – g)(3) = 4.ii. What should be the value of A if (f + g)(2) = 20.

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Evaluate the following. a. A salesperson whose annual earnings can be represented by the function P(x) = 40000 +x, where x is the won value of the merchandise he sells. His 25 son is also in sales and his earnings are represented by the function S(x) = 25000 +x. Find (P + S)(x) and determine the total family income if each of 20 them sells 15 000 000 won worth of merchandise.