Explain function n not function to me I’m really slow and I’m having trouble understanding can someone please explain so I can understand

Which linear inequality is represented by the graph? !

What is the answer to the question 5x+2x

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points