Ruby tosses a quarter off the main stree bridge into the st john`s river the distance in feet the quarter is above the water is modulated by the equation d(t)= -16t^2+96t+112. what weight what the quarter tossed

20 sharpened pencils are placed in a box containing an unknown number of unsharpened pencils suppose 15 pencils are removed at random and five of the remove pencils are sharpened based on this is it reasonable to assume that the number of unsharpened pencil is 40 explain your reasoning