Question 4 15 p A contaminant is introduced into a body of water. Consider the function A (t) = 15e-0-0zo, -023t which models the amount of a contaminant, in grams, in a body of water as a function of the time, t, in months. a. What is the initial amount of contaminant? Include units. b. Is the amount of contaminant in the body of water increasing, or decreasing with time? c. What amount of contaminant is in the body of water after 17 months? Round to 1 decimal place and include units. d. How long will it take for only 1 gram of contaminant to remain? Round to the nearest whole number and include units. Edit View Insert Format Tools Table Paragraph B I MacBook Air 80 FS F4 F7 F8 F9 F5 F619492/quizzes/282056/take A car rental company offers two plans for renting a car. . Plan A: $25 per day and $0.10 per mile . Plan B: $40 per day with free unlimited mileage How many miles would you need to drive for plan B to save you money? Edit View Insert Format Tools Table 12pt ~ Paragraph UA O words MacBook Air