Identify the property: 15(1) = 15 Commutative Property of Addition
Associative Property of Addition
Additive Identity
Multiplicative Identity
Distributive Property

i'm not sure i quite understand, could you provide more information?

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

c

step-by-step explanation:

at least i think its

b

2

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b

b

3

+

7

b

2

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14

b

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6

%

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3

b

3

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7

b

2

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14

b

+

6

%

step-by-step explanation: