Answer:
A.
Step-by-step explanation:
it's A because it's the only one with a negative 5 that equals negative 10.
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C. 16 cm
Top side: 2 + 4 = 6
Right side: 1 + 1 = 2
Bottom: 2 + 4 = 6
Left side: 1 + 1 = 2
6+6+2+2 = 16 cm.
7*
