Y=1/2x-3,y=x-5
i've been trying for hours pls me with the elimination method

What is always true about a positive integer raised to a negative odd power?

Having a hard time understanding this question (see attachment).

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers