Fitness for Families offers two exercise class options. The first option costs $50 plus $2 per class. The second option has no initial fee, but each class is $6. You want to compare the 2 options to see which option is the better choice. Part A. Should you use equations or inequalities to model this story? Write one complete sentence explaining how you know. Part B. Write a system of equations or inequalities to model this story. Part C. If you plan to attend 15 exercise classes, which option is the better choice? Show your work or explain how you found your answer.

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 > ?