PLEASE HELP! I NEED HELP ANSWERING A AND B.

Fine Line Trucks rents an 18-ft truck for $42 per day plus 35¢ per mile. Judy needs a truck for one day to deliver a shipment of plants. However, she only has a budget of $70.

a) Set up an equation that models this information.


b) How many miles can Judy drive to stay within her budget?