Answer:
A
Step-by-step explanation
Well the boys can be chosen again all in a row but the girls cdan't therfore the answer is A
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<h2>Please ask maths questions next time </h2>
Answer:

Step-by-step explanation:

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Answer:5400
Step-by-step explanation:
A= 6a*2
6x9x10*2= 5400
(6 + 5x)(7x + 3) = 42x + 18 + 35x^2 + 15x = 35x^2 + 57x + 18