John works two jobs. As a security guard he earns per hour. As a landscaper he earns per hour. One week John worked a total of hours and earned How many hours did he work at each job?John works two jobs. As a security guard he earns 7.50c per hour. As a landscaper he earns 12.00 per hour. One week John worked a total of 30 hours and earned 256.50 How many hours did he work at each job?