Given:
The function f(x) describes the amount of money, in dollars, the club will earn for wrapping x presents.
[tex]f(x)=3x[/tex]
To find:
The f(658).
Solution:
We have,
[tex]f(x)=3x[/tex]
Substitute x=658 to find the value of f(658).
[tex]f(658)=3(658)[/tex]
[tex]f(658)=1974[/tex]
It means, the club will earn $1974 for wrapping 658 presents.
Therefore, [tex]f(658)=1974[/tex].