3. It has been observed that a particular plant's growth is directly proportional to time. It...

 

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3. It has been observed that a particular plant's growth is directly proportional to time. It measured 2 cm when it arrived at the nursery and 2.5 cm exactly one week later. If the plant continues to grow at this rate, determine the function that represents the plant's growth. 4. A car rental charge is $100 per day plus $0.30 per mile travelled. Determine the equation of the line that represents the daily cost by the number of miles travelled and graph it. If a total of 300 miles was travelled in one day, how much is the rental company going to receive as a payment? 5. During a snowstorm, a meteorologist tracks the amount of accumulating snow. For the first three hours of the storm, the snow fell at a constant rate of one inch per hour. The storm then stopped for two hours and then started again at a constant rate of one-half inch per hour for the next four hours. 6. In a certain country, income tax is assessed as follows: There is no tax on income up to $15,000. Income over $15,000 and up to $30,000 is taxed at 12%. Income over $30,000 is taxed at 18%. a. Write the piecewise function of the following information. b. Determine how much tax is to be paid on an income of &17,000. 3. It has been observed that a particular plant's growth is directly proportional to time. It measured 2 cm when it arrived at the nursery and 2.5 cm exactly one week later. If the plant continues to grow at this rate, determine the function that represents the plant's growth. 4. A car rental charge is $100 per day plus $0.30 per mile travelled. Determine the equation of the line that represents the daily cost by the number of miles travelled and graph it. If a total of 300 miles was travelled in one day, how much is the rental company going to receive as a payment? 5. During a snowstorm, a meteorologist tracks the amount of accumulating snow. For the first three hours of the storm, the snow fell at a constant rate of one inch per hour. The storm then stopped for two hours and then started again at a constant rate of one-half inch per hour for the next four hours. 6. In a certain country, income tax is assessed as follows: There is no tax on income up to $15,000. Income over $15,000 and up to $30,000 is taxed at 12%. Income over $30,000 is taxed at 18%. a. Write the piecewise function of the following information. b. Determine how much tax is to be paid on an income of &17,000.