Simplify: (a) |6 − x| + |x − 10| if |4 − x| = 4 − x and |2 − x| = x − 2.

(b) Simplify 2 − |2 − |x − 2|| if x < −2.

(c) Evaluate a^2− 2ab if |a − 2| + |3 + b| = 0

(d) Find all possible values of y for which |2y + 7| = |3y − 1|.

3. solve by graphing: y = 2x + 6 x + y = -3

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

If np3 /nc2 = 6, find the value of n