Question 20 {1 point} MI: The concentration of a medicine in the bloodstream after t hours of taking it is given by the equation 0 [t] = \"#1 where t is the elapsed time in hours measured from EH3} 11:00 am. At what time does the concentration stop increasing? Question 22 (1 point) Listen The manager of a car rental agency knows from experience that all 500 cars will be rented if the fee is $80 a day. A market survey suggests that, on the average, five fewer cars will be rented for each $4 increase in price. How many cars will be rented when the revenue is maximized? O 240 O 500 320 O 300Question 24 [1 point] II A particle is moving 1with a position function given by .s (i) 2 t2 %t3 with position in metres and time in seconds. When is the particle at rest? C) it never stops @125 Qoand 125 Oils Question 24 [1 point] II A particle is moving 1with a position function given by .s (i) 2 t2 %t3 with position in metres and time in seconds. When is the particle at rest? C) it never stops @125 Qoand 125 Oils