Benecio worked 40 hours at his two jobs last week. he earned $20 per hour at his weekday job and $18 per hour at his weekend job. he earned $770 in all. how many hours did he work at each job? tell me the system of equations as that's what i need to solve it.

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d