400 dm is greater than 4m... hope this helps
It should be B because is a minus is in front of something that is a negative they change to be positive

Now plug the x value into 9x + 2

Hope that helps!
The answer would be x + x + 2 = 72. Combine like terms so that 2x + 2 = 72. 2x = 70 and x = 35.
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where a-term determines how wide/narrow/upward or downward of the graph.
h-term determines the changes of graph for x-axis
k-term determines the changes of graph for y-axis.
The vertex of parabola is at (h,k).

Therefore, h = 6 and k = 3.
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