What is the solution to the two equations, x+7y=24, and x-9y= -24 can you show work?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?