1) NP= y-3
PK= 1.25y
MK= y+1
2) y+y-3+1.25y+y+1=16
3) y+y-3+1.25y+y+1=16
3y+1.25y=16+3
4.25y=19
y=4.47
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Answers & Comments
1) NP= y-3
PK= 1.25y
MK= y+1
2) y+y-3+1.25y+y+1=16
3) y+y-3+1.25y+y+1=16
3y+1.25y=16+3
4.25y=19
y=4.47