Here is some information about the goals scored in some hockey games. Each has four quarters. The mean number of home goals scored is 2.5 The mean number of away goals scored is 1.8 How many home and away games have been played in total?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?