Given the function:

What is the output of the function when the input is x = 9?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

What is not true about kl and mn? what is mn? (show )

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?