Nine friends each guessed the number of marbles in a jar. when the answer was revealed they found they had guessed well and one was the winner. what was the standard deviation their errors?

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

Math i have no idea how to do a and b