Katie incorrectly simplifed the expression -(-4/5).(-2/9). Her incorrect solution was 8/45 Part A
What is the correct product?

Part B
What error did Katie make in this problem? How would this affect the answer?

a) -(-4/5).(-2/9) = -8/45

b) Katie forget to add the minus.

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: