Mariel wrote these checks from her Checks from her checking account:10,10,31 and 10,
Which number shows the change in the balance of her account

31

Step-by-step explanation:

One number out of all of them change it goes 10 10 31 and obviously 31 should not be there so that is the where the change is

a

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: