Lines AD and EC meet at point B. Which of these must be true? Select all that apply.

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9