Anewspaper writer will write an article about the mean age of voters. she will estimate by selecting a sample of voters and calculating their mean age.

which method should the writer use to select the sample?

a. select 100 people who voted for the most popular candidate in the last election

b. randomly select 100 people who voted in the last election

c. randomly select 100 people who read the newspaper

d. select 100 people who voted in the last election and are more than 39 years old

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.