An animal shelter spends $2.50 per day to care for each cat and $8.50 per day to care for each dog. grace noticed that the shelter spent $90.00 caring for cats and dogs on friday. grace found a record showing that there were a total of 24 cats and dogs on friday. how many cats were at the shelter on friday?

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.