Me out? it will be very appreciated!

Which table represents a linear function? i'll give brainliest to first answer ^'^

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.