Part 1: provide your own unique example of the commutative property of multiplication.

part 2: provide your own unique example of the symmetric property of equality. note: an example is not the same as a definition.

Part 1. Commutative Property of Multiplication is, simply put, the rearrangement of the individual terms which does not affect the final answer. If a×b = ab, b×a is also equal to ab. For example: 2×5×9×3 is equal to 5×3×2×9 or 9×2×5×3 and any other combination there is. It won't matter because the answer would still be 270.

Part 2. Symmetric Property of Equality could be thought of as a reflection of algebraic expressions wherein the mirror is the '=' symbol. According to its definition, a=b is the same as b=a. As an example, 2 + 2 = 4 is just equal to 4 = 2 + 2. These equations are dependent. 

The correct answer is $90