Answer:
A. 15.5 yards
Step-by-step explanation:
3.1 ×5=15.5
200 copies must be sold
n= number od newsletters
0,50*n+300=2,00*n
300=1,5*n
Divide both sides by 1,5
200=n
0,50*200+300=2*200
100+300=400
400=400
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