Simplify by combining like terms: 10x - 12y + 8 + 12y

khan academy has a pretty good explanation on combining like terms. https://youtu.be/CLWpkv6ccpA. The image provided has the answer and what I did

each side has a different length.  

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: