An accessory shop estimated that to produce one unit of a product the cost for raw materials is RM15. The fixed cost is RM5 000. The product is sold for RM25 per unit.

a. Find the profit function, P(x), where x is the number of units of the product.

b. Find the break-even point.

c. How much was the profit/loss if 350 units were sold.

d. Sketch the graph of the cost function, C(x) and the revenue function, R(x). Indicate the break-even point and shade the profit and loss areas.

please help me to answer a,b,c and d.​