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A quadrilateral has 4 vertices and the sum of the measures of the interior angles is 360 degrees. There cannot be 4 diagonals in a quadrilateral.
Answer:
C 5a^2 +70a +240
Step-by-step explanation:
We have given these following functions:

h(a+4)
This function is:



f[h(a+4)]

Thus

The correct answer is given by option C.