Help with explanation or none pls!!❤️

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?