Replace the x in 7x by (3x + 1):-
(f o g)(x) = 7 * (3x + 1)
= 21x + 7 which is choice D.
Distance from base = 305 / tan(29.5deg)
= 539 ft
1). Am I seated comfortably, with plenty of light on my paper ?
2). Is my pencil sharp ?
I'm assuming you mean to list the terms of the expression. Those are mn, -2n, and +8. There are 3 terms there.
