The function y = -168 + 144 represents the height y (in feet) of a water droplet 1 seconds after falling from an icicle.
After how many seconds does the water droplet hit the ground?

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

Which is f(5) for the function –2x2 + 2x - 3?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.