I’m desperate flip the image over ans answe plese.. I’m desperate this is all my points now

Answer:
Look below :)
Step-by-step explanation:
Im not doing the table :)
b. Cost for 1,000 messages : 30 dollars
Cost for 1725 messages : 51.75
c. 60: 2,000
75: 2,500
18: 600
b. 37.50
(graph stuff, cant do it:))