There are 57 students in the orchestra and twice that number in the band. There are 18 boys and 28 girls in the choir. If each s
2 answers:
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Remark
For every 3 units for NP will be 4 units. You can set up a proportion.
3*NP = 4*45
3*NP = 180 Divide by 3
NP = 180/3
NP = 60
Answer C