A bakery makes angel food cupcakes and chiffon cupcakes using two common ingredients: sugar and flour. A box of angel food cupcakes requires 8 cups of sugar and 4 cups of flour and sells for $21 per box. A box of chiffon cupcakes requires 4 cups of sugar and 9 cups of flour and sells for $10 per box. The bakery has 234 cups of sugar and 220 cups of flour on hand on a certain day. How many boxes of each product should the bakery make that day to maximize its profit?

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.