20,146,974. 78,901,234. 46,123,086.
76,543,218. 54,876,547
Answer:
-12
Step-by-step explanation:
We start with the equation: 
Substitute the variables: 
Solve using order of operations (start with multiplication): 
And then addition/subtration: 
The answer is 10x^4 - 2x^3
That would be 13 feet because each yard is 3 feet so 3x4=12 (feet)
so the correct answer would be 13 feet.
