Dana loves to wear socks with crazy patterns. She finds a great deal for these kinds of socks at her favorite store, Rock Those Socks.
There is a proportional relationship between the number of pairs of socks that Dana buys, x,
and the total cost (in dollars), y.

a 10 percent increase

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.