Please help me idkkk know howww took dooo thisss

57 mm^2

Step-by-step explanation:

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1) Well, to find the area of the first, just split it into two rectangles.

Top rectangle's area=3*4=12

Bottom=9*5=45

45+12=57 mm^2

2) You would make it into a parallelogram and a trapezoid, as they suggest,

Trapezoid: you would do ((14+26)*10)/2=400/2=200 m^2

Parallelogram: 14*7=98 m^2

200m^2+98m^2=298 m^2

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, and this took a while to solve! Thanks so much!

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.