The width of a rectangle is the length minus 4 units. The area of the rectangle is 21
units. What is the width, in units, of the rectangle?

Step-by-step explanation:

let the Length= L

      Area of a rectangle= Length* Width

                                 21=L*(L-4)

The length cannot be negative so, Length = 7 units

Width=Length-4

Width=7-4= 3 units

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation:

126 maybe. sorry