23 4 −(−1 1 2 )+(− 5 6 )−(− 3 8 )−(+4 2 3 )

fast worth 40 points not lieing

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.

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

At saturday nights football game there were 18 less fans than half the fans at friday nights game.there were "x" fans at friday's game.write an expression to represent the number of fans at saturday's game. *** urgent***