(2x + 3)^2 , expand , if necessary combine like terms, please answer

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.

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?