28 When the water has mo chemicals, the mumber of bacteria (6) is 1200 per gallon. For each tablespoon of the chemical solution(c) added to each galloncie water, the number of bacteria decreases How much of the chemical, in tablespoons, must be added to a 500- gallon tank to reduce the bacteria count to a safe 300 bacteria per gallon? ​

Aportion of a line bounded by two points is defined as

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.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.