Could you give me an example of this? this is homework but I prefer an example about this and understanding it. ​

What aspects of lines have to be diffrent

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?