What is the next number in the sequence?
3,12, 21, 30,?
A. 39
B. 33
C. 51
D. 42

What is the value of x? enter your answer in the box. photo attached.

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.

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear