Draco's father opened a savings account for his baby boy. He placed $1,200 into the account which earns 3.75% per
year. Draco cannot access the money until he is 21 years
old. How much will the account be worth at that time?

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.