Which inequality is equivalent to this one y-8_<-2

Find the measures of the complement and the supplement of each angle, m

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)