Need help with this question is as a symbolic equation

Given:
Johny picks apples on an orchard.
He gets paid $20 plus $1.50 per bushel.
Let, x denote number of bushel.
The total cost is written as,
[tex]C(x)=20+1.50x[/tex]Answer:
[tex]C(x)=20+1.50x[/tex]