Find the average value of the function f(x)=−4x3f(x)=−4x3 on the closed interval [−1,3][−1,3]. average value

3. solve by graphing: y = 2x + 6 x + y = -3

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?

Which points are solutions to the linear inequality y < 0.5x + 2? check all that apply. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2) (1, 2)