HELP ME PLSSS On Tuesday July and three of his friends eat dinner at a restaurant where their meals cost $12 per person but are 25% off every Tuesday the tags on their meal was 8% and they left a tip that was 20% of the pretax what is an expression that can be used to find the cost of one person's meal not including tax or tip on a Tuesday

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.