To the nearest tenth, what is the difference between the mean number
of hours that 6th
graders play video
games and the mean number of hours
that 8th graders play video games?

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal