Write the following in Algebraic notation. 1. -3 times x times -8 2. 5x divided by 27 3. (x - 4) times (2x + 8) 4. x times 5 times y 5. (13 - x) divided by 2x 6. 200x divided by (x-8) Plumbing Use the formula T = 2(D - d) to find the wall thickness T of tubing having the following dimensions. (See the figure.) T - D, outside diameter d, inside diameter D (a) 2.125 in. 1.500 in. 7. x +17 =-37 X = 8. x -78 = 75 X = 9. 67 + x = 299 X = 10. -7 -X = -21 X = 11. -4x = -36 X = 12. -5x = 85 X = 13. Aviation If an airplane pilot cruises at an average speed of 220 mi/hr for 3 hours 15 minutes, what distance does she fly