How do u solve for f in kn+4f=9v

1. get 4f by itself
4f = 9v - kn

2. divide by 4 on both sides
f = 9v - kn
————
4

B. to study the spatial patterning of forests and forests fires and plan for better use of fire fighting resources in the u.s.

Answerequatorial guinea,gabon, and western sahara;