What is the value of -3x to the second power +(-3) to the second power x when x equals -1?

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

How many solutions does the nonlinear system of equations graphed below have?

What rotation was applied to triangle def to create d’e’f’?