HURRY 50 POINTS Which of the following is the inverse of y = 12 Superscript x?
y = log Subscript one-twelfth Baseline x
y = log Subscript 12 Baseline StartFraction 1 Over x EndFraction
y = log Subscript x Baseline 12
y = log Subscript 12 Baseline x

Geometry. i need step by step explanation on how to do each problem.

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.