The cost to mail a package is $5 for the first 2 pounds and 40 cents for each additional ounce.

Which of the following functions represents the cost to mail a package if x is the number of ounces over 2 pounds?

f(x) = 0.4(x + 2)
f(x) = 10 + 0.4x
f(x) = 5 + 0.4x

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.