Lwandi got her Maths test back and was very happy about getting 85% for the test. To get full marks for the test she would need to get 60
marks. How many marks did she lose?

she lost 8.5 marks.

Step-by-step explanation: 85% of 60=8.5

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: