What is the simplified expression for the expression below? One-half (8 x + 4) + one-third (9 minus 3 x) 5x + 5 7x + 1 x + 7 3x + 5

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?