Apen and pencil in carlo’s case is 4: 5. he has 16 pens. how many pencils does carlos have? ?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?