Cynthia Besch wants to buy a rug for a room that is 21 ft wide and 29 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 513 square feet of carpeting. What dimensions should
the rug have?

step-by-step explanation:

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: