Acar travels along a straight road with a 21 degree incline. after traveling 2150 ft up the incline , how much higher is than it was at the starting point. round your answer to one decimal place.

First convert the miles into meters. 

There are 5280 feet in a mile, then there are 12 inches in a foot, then 2.54 centimeters in an inch and then 100 centimeters in a meter. So you get ((262.4)(5280)(12)(2.54))/(100)= 422291.8656 m. 

Speed= distance/time 
6.2 m/s = 422291.8656 meters/ T (s) 
T (s) = 422291.8656 meters/ 6.2 m/s 
T (s) = 6811.59123 seconds

Try a or d, hope that