The state of California has the following guidelines for overtime pay: 1.5 times regular pay for over 40 hours per week, 1.5 times regular pay for over 8 hour per day and on the first 8 hours per day on working the 7th day in a work week; but has 2.0 times regular pay for over 12 hours per day and over 8 hours on the 7th day in a work week. Christina is paid $15.00 per hour, and works 15 hours per day for all 7 days in a work week.

What is Christina's regular pay, her overtime pay, her double time (2x) pay, and finally, what is her total pay?

Show your math step by step for each solution (4 total answers).