Charlie and dasha are roommates, and they have a dog. if neither of them is home, they hire someone to watch the dog. charlie must go on business trips every 6 months while dasha must go on business trips every 9 months. if they both just got back from business trips, how many months will it be before they need to hire someone to look after the dog again? explain your answer.

33

step-by-step explanation: g=6

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: