Bob is having a party and want to order some cake. there will be 57 guest and he wants to make sure that everyone gets a slice of cake. he wants to pay as little as possible for the cakes and for them to be the same size. first cake 20cm, serve 12 people and cost £13.50, second cake 25cm, serve 20 people and cost £18.75

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

283 square feet

step-by-step explanation:

good luck