Evaluate 16x^{0} if x = -3

Question and answers are in the attached picture. you so much in advance.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.