Answer:
108 in²
Step-by-step explanation:
Area of a triangle is given as ½*base*height
The base of the given triangle = h + 6
height = h
Algebraic expression for its area = 
Evaluate the area if h is given as 12 inches.
Plug in the value of h into the algebraic expression:



Answer:
Plug in the 12 into the x's and find the ordered pair
Step-by-step explanation:
1) y=x+2
2) y=1/4x
3) y=-3x+0.5
4) y=0.2x+0.8
Answer:
D
Step-by-step explanation:
Only the green and pink lines represent a proportional relationship.