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- Sketch a rough graph of the market value of a new car as afunction of time for a period of 20 years. Assume the car iswell maintained.A man gets a raise of 12% in salary at end of first year and further raises of 16% ,19% and 25% at the end of second, third and fourth years respectively; the raise in each year being calculated on his salary at the beginning of the year. What is the average annual percentage increase?A company first six month of a certain year made 30% profit, and last six months lost 30%. What percent is the overall profit or loss at the end of the year?