Which number line correctly shows 0.8 + 0.3?

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

How far is x from 5 on a number line?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !