Respuesta :

alkhalidisara
The answer is 
1.1n+4.5p-2.5

RiverShinesDragon
Alright:
2n + 5.5 - 0.9n - 8 + 4.5p
Organize:
2n - 0.9n + 5.5 - 8 +4.5p
1.1n - 2.5 + 4p
1.1n + 4p - 2.5
Hope this helps!