maggie earns money from working at the pet store and answering phones. she earns $10 each hour she works at the pet store and $0.25 for each phone call she answers. maggie answered 60 phone calls and earned $115 last week

find

part a: create an equation that will determine the number of hours she worked at the pet store. (3 points)

part b: solve this equation justifying each step with an algebraic property of equality. (6 points)

part c: how many hours did maggie work at the pet store last week? (1 point)