Which quotient shows the decimal placed correctly? OA) 1.66.4 = 2.5
O B) 1.8 0.3 –0.6
O 7.2+18 = 4
OD) 0.870.2 – 4.35

The answer is C.

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:

b

step-by-step explanation:

the word superfluous means unnecessary