Answer:27
Step-by-step explanation:
In the 7th and 8th grade combined, there 3+5 girls = 8 girls, and 7+5 boys = 12 boys. If there are only boys and girls, then there are 12+8=20 students in all.
The fraction of girls out of the total is P = 8/20 = 2/5.
Try <span>38.465cm I'm not good at math but its the best I could do
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Simplify the expression shown below.(6+8i)(4-7i)