320 girls x 0.2 lh probability = 64 lhg
250 boys x 0.1 lh probability = 25 lhb
Total is the sum of the two 64+25 = 89
Answer:
24 in all
Step-by-step explanation:
1,100/45=24
25+20=45
Answer:
x=8
Step-by-step explanation:
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