Just make sure you are covering all costs associated with renting the equip.( your time ordering, picking up, cleaning, refueling, blades and return.) Then add asmall markup for profit.
Planning is important. Probably a 4 hr. minimum on rental,can you do some other chargable jobs to spread the cost.
Twenty minutes edging with 4 hrs. cleanup????
po box 630
mount airy, md 21771-0630