Complete Question
Complete Question is attached below
Answer:

Explanation:
From the question we are told that:
Standard models contribute $20
Deluxe models contribute $30
Availability Average :
Stamping machine S= 30 minutes per hour
Motor installation Production M=60 minutes
Wiring is W=90 minutes per hour
Generally the formulation of the linear program is given as

Where
For Stamping machine

For Motor installation Production

For Wiring

Therefore
Solving Equ...(1,2,3) simultaneously we have

Therefore


