On a number line, the surface of a river is marked at -220 feet and the top of a building is marked at +19 feet, were 0 represents sea level. What do -220 and +19 represent?

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

If eh = hg and hg=16, find the diameter of k

What is not true about kl and mn? what is mn? (show your work)