Hence find the set of values of x for which f

x < 9, giving your answer in exact form.

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?

Graph the equation. select integers for x

Select the graph of the solution. click until the correct graph appears. |x| = 3