please help me with this operation research problems

please described with details and using the methods described in this one is very important

Thanks!

Solve each problem using the methods described in each one: 25 pts each (partial points for procedure) 1- A manufacturing plant produce two types of cars (compact cars and sport cars). Inside the plant they have a welding process with a capacity of 20 units per hour of compact cars or 35 units of sport cars, with a cost of $15. The final assembly area has a capacity of 20 units per hour of compact cars or 30 units per hour of sport cars, with a cost of $9. The painting area can paint 30 units per hour of compact cars or 20 units per hour of sport cars, with a cost of $12.50. Compact cars price is $3 and $2 for sport cars ($$$ value in thousand). How many sport cars and compact cars they need to produce in order to maximize profit? Using graphical method Using the simultaneous solution