Answer:
3???
Step-by-step explanation:
Answer: (A) The product of two numbers with the same sign is positive.
Since the numbers in each pair have the same sign, the product will be positive.
The answer is D! This shape is a pentagon and has 3 180° angles. 3x180 is 540.
Answer: the addition of xy would make it a polynomial because it cannot simplify and the equation would have 3 different set of numbers that could not combine.