A company has a monthly budget of x dollars. Every month, $20,700 of the monthly budget is spent on salaries. One-fifth of the remaining budget is spent on office supplies. Which function can be used to calculate the amount, in dollars, spent on office supplies? f(x)=x−20,7005
f(x)=x+20,7005
f(x)=20,700−x5
f(x)=20,700+x5