Plz help me out with the 'd' one​

381/90

Step-by-step explanation:

x = 4.2333 (I)

Number of digit after decimal is 2 ( 4 , 3). So multiply both sides by of equation 100

100x = 423.333 (II)

One digit (3) is repeating.So, multiply by both sides of equation (I) by 10

10x = 42.333 (III)

Subtract Equation (III) from (II)

(II)     100x = 423.333

(III)        10x =  42.333  {Subtract}

         90x   = 381

                x = 381/90

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.

add an image

step-by-step explanation: