1/2 - 13/4 + 29/4
Can someone help? Please

9/2

Step-by-step explanation:

Find the Least Common Denominator

2/4, 13/4, 29/4

First you subtract

2/4 - 13/4 = -11/4

Then you add

-11/4 + 29/4 = 18/4

You then simplify

18/4 -> 9/2 or 4 1/2

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.

22

step-by-step explanation: