Verona is solving the equation –3 + 4x = 9. in order to isolate the variable term using the subtraction property of equality, which number should she subtract from both sides of the equation?

The Number is -3

-3+4x = 9

-3-(-3)+4x = 9-(-3)

4x = 12

x = 3

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.

900 degrees

step-by-step explanation: