I need the cplex opl solution.

General Wheels Co. is produces three types of wheels on two different production lines. Each line can be utilized by up to seven workers at a time. Workers are paid $500 per week on production line 1, and $900 per week on production line 2. A week of production costs $1,000 to set up production line 1 and $2,000 to set up production line 2. During a week on a production line, each worker produces the number of units of wheel shown in table below. Each week, at least 120 units of wheel 1, at least 150 units of wheel 2, and at least 200 units of wheels 3 must be produced. Wheel Production Line 1 3 1 20 30 40 2 35 50 45 a- (50pt.) Formulate an IP to minimize the total cost of meeting weekly demands b- (50pt.) Solve your formulation using OPL