Solve clearly

Your total benefits from consuming different quantities of gasoline each week are shown in the table. Suppose gasoline costs $4 per gallon. First, complete the table. Only enter the numbers, and NOT the '$' signs. Gallons T Total per Benefit Total Cost ($) Net Benefit ($) Week 0 0 1 8 2 15 3 21 4 26 5 30 6 33 7 35 8 36 How many gallons of gas should you purchase each week? Which method of optimization was this one? (Levels or Margin]Your total benefits from consuming different quantities of self-help books each year are shown in the table. Find the marginal benefit that you get from reading each additional book. Marginal Benefit=Change in Benefit Only type in the numbers, and NOT the "$" sign. Total # of books Benefit Marginal Benefit ($) ($) O n/a 1 80 2 150 3 210 4 260Your total benefits from consuming different quantities of gasoline each week are shown in the table. Suppose gasoline costs $3 per gallon. This means the cost of one additional gallon of gas i equal to $ (True or False:) The Marginal Cost of a gallon of gas is fixed and equal to $3. Now, complete the Marginal Benefit values in the table. Only enter the numbers, and NOT the '$' signs. How many gallons of gas should you purchase each week? Which method of optimization was this one? (Levels or Margin] Gallons per Total Benefit Marginal Benefit ($) Week 0 n/a 1 2 15 3 21 4 26 30 33 35 8 36Your additional benefit (marginal benefit) from drinking bottles of water in a hot day is shown in the table. Marginal Benefit 1 st bottle 30 2nd bottle 20 3rd bottle 8 4th bottle 2 Only type in the numbers, and NOT the "$" sign. What is the "total benefit" of drinking 2 bottles of water? What is the "total benefit" of drinking 3 bottles of water? What is the "total benefit" of drinking 4 bottles of water