Answer:
x=-24 is the correct answer
Answer = 0
n can have possible values from (-12) to 12
-12 <= n < 12
(-12) + (-11)+(-10)......+10+11+12=0
Answer:
1.

2.

Step-by-step explanation:
Area of triangle=1/2×b×h
=



2. Area of triangle=14




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