On one shelf of the school library, 1/2 of the books are about sports. joyce sees tha 3/4 of the sport books are basketball. what fraction of the book on the shelf are about basketball?

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.

80 the answer is 80

step-by-step explanation:

i dont know the answer but here's a picture of a dog

they can either have 0,1, or infinite solutions

step-by-step explanation: