Jerald is having drain issues at his home and decides to call a plumber. The plumber charges $35 to come to his house and $60 for every hour they work. If the plumber charges Jerald a total of $305, how many hours did the plumber work? Write and solve an equation to determine the number of hours worked by the plumber. 35x + 60 = 305; x = 7 hours 35x − 60 = 305; x = 10.4 hours 60x + 35 = 305; x = 4.5 hours 60x − 35 = 305; x = 5.7 hours