leave correct answers below with no explanation, make sure that you have the right answers or will vote unhelpful. thanks asap

Question 1 [1 point] '-II The concentration of a medicine in the bloodstream after t hours of taking it is given bv the equation C(t} = \"L\" where t is the elapsed time in hours measured from {Ha}! 11:00 am. At what time does the concentration stop increasing? 0 3 hours Question 2 [1 point] '-II The manager of a car rental agencv knows from experience that all 500 cars will be rented it the fee is $312] a dav. A market survey; suggests that, on the average, five fewer cars will be rented for each $4 increase in price. What fee should she charge to maximize revenue? Om Osaoo Osao 0 $240