A bag contains 600 coloured counters. The counters are yellow, brown or orange. There are 117 yellow counters in the bag.
The probability that a brown counter is chosen from the bag is 0.35 Calculate the number of orange counters in the bag.

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.