The United States Postal Service delivers about 2⁴ * 3 * 5³ pieces of mail each second. There are 2⁸ * 3⁴ * 5² seconds and 6 days. How many pieces of mail does the United States Postal Service deliver in 6 days write your answer as an expression involving three powers.

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.

Are the corresponding angles congruent? explain why or why not.

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?