{7x-y=6
{-7x+y=-6
independent or dependent

On a architect's drawing of a house, 1 inche representa 1.5

For how answer my question this will be the last question can you answer in math subject

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.