Ahot air ballon went from an elevation of 4607 feet to an elevation of 3212 feet in 30 minutes. what was it’s rate of descent?

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Can anyone explain to me how to do this? anything will .