During the month of february fabulous feet shoe mart sold 50 pair of red leftovers after an ad campaign to be your sales they sold 60 pairs in march 5 percent of increase in sales 23% 20% 15% 12%

20% increase

Reasoning: Going from fifty to sixty is an increase of ten, with respect to the original fifty pairs.

The percentage increase should be calculated from change/original x 100%

10/50 x 100% would equal 20%, which in this case 20% would be the increase, which is your answer, known as B. Hope I helped! If not, at least I tried.

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: