Choose the expression that represents a cubic expression. A) 2x + 11
B) −3x2 − 2x + 11
C) 4x3 − 3x2 − 2x + 11
D) 5x4 + 4x3 − 3x2 − 2x + 11

How do the graphs of y = 1/x and y=5/x+6 compare?

Can someone answer this question? : )

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.