Please answer with work shown

11. Write 3log, x -2log. y-log, z as a single 12. Evaluate: In- logarithm with a coefficient of 1. Round to the nearest ten-thousandth. 13. Evaluate: log, 9.9 14. Solve for x: 16*-1 =8*+3 Round to the nearest ten-thousandth. 15. Graph: f (x) = log2 (x-1) 16. Graph: f (x) = log, (2x) X 17. Solve for x: 32*-1 = 37x-11 18. Solve for x: log, (3x - 6 =2 19. A sample of Iron-59 contains 50 mg. One hundred 20. Find the number of decibels of sound in a factory in days later, the sample contains 10.75 mg. What is which the power of the sound is approximately the half-life of iron-59, in days? Round to the 4.5x10- watts. Use the equation D =10(log L+16), nearest tenth. where D is the number of decibels of sound and L is the power of the sound measured in watts