HEL Items 19–20. Neil Armstrong was the first person to walk on the moon. If a person was the first to walk on the moon, then that person was Neil Armstrong.19.If a person Neil Armstrong, then that person the first person to walk on the moon.20.Since Neil Armstrong was the first person to walk on the moon, the contrapositive is . Since the contrapositive is ,
the must be true.

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:

$12. that is my answer.

answer: the answer is simply nothing.

step-by-step explanation: because there is no ending to this question

gimme brainliest > : 3