i am required to sketch graphs to the following situations.Unfortunately, i donot have answers therefore required your help.

1) You went to book a banquet for a birthday party.The manager told you that the charges will be fixed Rs.30,000 and 1500 per guest

2) All other conditions as above but the conditions apply after 100 guests

3) Mr. X uses CNG per km to travel to his office.The government has applied restriction and now only a car with atleast 2 passengers is allowed.Mr.x had to pay Rs 20 each to make 2 persons travel with him.Graph is required for both before and after travelling expense

4) In a country electric bill is charged as Rs 500 for 0 to 100 units and a discount of Rs.100 is offered after every 50 units

Graph sketch is required

Thankyou