Functions A and B give the population of City A and B respectively, t years since 1990. In each function, population is measured in millions.

Step-by-step explanation:

Given

See attachment for both functions

Solving (a): Which is greater in A(4) and B(4).

From the readings of the graph

By comparison:

because

Solving (b): When is A(t) = B(t)

From the readings of the graph

when

i.e.

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: