Answer:
Increasing and linear: B
Decreasing and linear: E
Increasing and nonlinear: A
Decreasing and nonlinear: D
-w+4(w+3)=-12
-w+4w+12=-12
3w=-12-12
3w=-24
w=-8
HOPE I HELPED!!!
In this equation, there is nothing to solve for. However, the expression

is the Pythagorean theorem. If there is a right triangle, then when the lengths of two shorter legs (a and b) are added together, and then square rooted, you get c, which is the hypotenuse.
Hope this helps!