Consider a situation where P(A) = and P(A and B) =. If the events are independent, then what is P(B)?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.