Which is not an equation of the line that passes through the points (1, 1) and (5, 5)? x - y = 0
-x - y = 0
y - x = 0

What is 20+(5 x 2/5 )+ 3 show your work

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

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.