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.

Read the excerpt from "death by black hole."albert einstein's general theory of relativity, published in 1916, provides the insight to understand the bizarre structureof space and time in a high-gravity environment. later research by the american physicist john a. wheeler, and others, to formulate a vocabulary as well as the mathematical tools to describe and predict what a black hole will do toits surroundings.read the excerpt from "man listening to disc."and i bow deeply to thelonious monkfor figuring out a wayto motorize or whatever-his huge pianoso he could be with us today.these excerpts are similar because both texts

Based on this chart, how many details should each event contain on the time-order chart? (site 1)

Which excerpt is an example of a claim of policy from compulsory voting an idea whose time has come