james started tutoring children several times a week. the first 2 weeks he had to buy tutoring supplies and had losses of $40 and $56. the next three weeks he made a profit of $105, $70, and $140. at the end of the 6 weeks, he had a net profit of $252.
(a) write an equation to find the profit or loss for the 6th week in this situation. solve your equation. was there a profit or a loss for that week? show your work.
(b) what was james's average profit or loss for the 6 weeks? show your work.
this is on k12, me!

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?