Which expression is equivalent to one over four n − 16?

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.)

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?