An urn contains 13 red marbles and 14 blue marbles. 16 marbles are chosen at random. what is the probability that 6 red marbles are chosen?

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.