Answer:
7x(x−1)
Step-by-step explanation:
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
hi im not sure it's right it was kinda confusing
