Problem #1: Find x3x 2 9 3 dx B. The marginal cost for producing x units of a product is given by 0.003x 2 2 x 20 dollars per unit. If the cost to...

Problem #1: A. Find B. The marginal cost for producing x units of a product is given by dollars per unit. If the cost to produce 100 units is $ 163 00 find the cost function. Problem #2: A. Find B. The marginal profit for producing x units of a product is given by dollars per unit. If there is a loss (negative profit ) when making and selling the first 50 units of $10 75 find the profit function. Problem #3: A. Find B. The rate at whi ch a toxic chemical is being spilled into a river is given by pounds of pollutant per day where t is the number of days. For each pound of pollutant spilled the company is fined $500. If it is estimated that 1 1 pounds of the pollutant have been spilled into the river after 20 days, find a function to represent the total fines the company incurs from spilling pollutants into the river after t days.     dx x x 9 2 3 3 20 2 003.0 2   x x       dx x x x 5 4 2 2 15 02.0   x   dx x x 6 5 2 t t 5.0 002.0 