The library at a certain university reported that journal prices had increased by 160% over a period of 10 years. The report concluded that this represented a price increase of 16% each year. If journal prices had indeed increased by 16% each year, what percentage increase would that give over 10 years? (Round your answer as a percentage to the nearest whole number.)

Can someone me with my hwplz(only the circled ones)

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.)

Ineed in figuring out this problem.