PLEASE HELP This graph shows the number of miles a freight train travels over a period of time.
What is the slope of the line?

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.

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

The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?