Got to ask this again but help

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225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

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