For numbers 7-9, write the function rule for the given situation.
7. A landfill has 50,000 tons of waste in it. Each month it accumulates an average of 420 more
tons of waste. What is a function rule that represents the total amount of waste after m months?
f(m) =
8. A kennel charges $15 per day to board dogs. Upon arrival, each dog must have a flea bath that
costs $12. Write a function rule for the total cost for n days of boarding plus a bath.
f(n)=
9. A worker's earnings are a function of the number of hours ʼn worked at a rate of $10.75 per
hour. Write a function rule for the total amount of money the worker makes for h hours.
f(h) =