Answer:
C
Step-by-step explanation:
substitute -1 into all of the formulas, if both sides are equal, then it is correct, for C:
2(x-2)+6 = 0, sub -1
2(-1-2)+6=0, simplify and work out
2(-3)+6=0
-6+6=0
0=0
Answer: 0 is the place number for 10
yes
the explanation is that a rhombus is a parallelogram in which all sides are equal. Their diagonals bisect each other at right angles.
