Hector works 12 hours per week at a part-time job. His original pay rate was $8.00 per hour, but he recently received a raise of x dollars per hour. His new total weekly pay, y, is represented by the equation y = 12(8+x).
If Hector earned $126 last week, what was the amount of Hector's raise per hour?
O A. $3.75
O C. $1.50
OB. $3.00
OD. $2.50