A vehicle's fuel economy is affected by its speed. The data on Spaller Auto's most popular vehicle is shown in the table below where x is the speed (mph) and Fx) is the fuel economy (mpg).Calculate the rate of change for the interval 45 <= x <= 55.

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The waves crash on the shore ? alliteration ,assonance,onomatopoeia

If music be the food of love, play on; give me excess of it, that, surfeiting, the appetite may sicken, and so die. that strain again! it had a dying fall: o, it came o'er my ear like the sweet sound, that breathes upon a bank of violets, stealing and giving odour! now read the excerpt from "the love song of j. alfred prufrock." for i have known them all already, known them all: have known the evenings, mornings, afternoons, i have measured out my life with coffee spoons; i know the voices dying with a dying fall beneath the music from a farther room. what does the phrase "dying fall" most likely mean in both excerpts