<span>if at 7 it was 65 and at 9 it was 55, that means temperature is decreasing by 5 per hour</span>
15 girls 12 boys 5x3=15 and 4x3=12 so 15 girls 12 boys
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the expresion its equal at the d9feremce between you and the excercise so its 7
Answer:
square root 90 ≈9.486832980505138
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I hope it is correct.. :)
