Answer:
16
Step-by-step explanation:
Shape C is A trapezoid
Area of trapezoid = 
where a and b = base lengths and h = height
The trapezoid has the following dimensions
base 1 = 3 units
base 2 = 5 units
height = 4 units
Using these dimensions we plug in the values into the formula stated above.

Hence the area of shape C = 16 square units
A) x + 4y = -15
B) -2x -8y = 30
Multiplying A) by 2
A) 2x + 8y = -30
This has NO solution because A) and B) are actually the same equation.
Equation B = Equation A times minus 2.
I believe if I’m not wrong the answer should be B 1/6
Answer:
6meters meter meter meter