Suppose that the demand curve for bottles of ibuprofen at the local pharmacy is given by QD = 538 - 6P. If the pharmacy wants to sell 400 bottles, what price do they need to charge?

What is the result of the following division?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

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.