Read a data file. The files density_water. dat and density_air. dat files in the folder src/files contain data about the density of water and air (resp.) for different temperatures. The data files have some comment lines starting with # and some lines are blank. The rest of the lines contain density data: the temperature in the first column and the corresponding density in the second column. The goal of this exercise is to read the data in such a file and plot the density versus the temperature as distinct (small) circles for each data point. Let the program take the name of the data file as command-line argument. Apply the program to both files. Name of program file: read_density_data. py

Amain idea is supported, explained, or expanded on with a numbers b. a concluding statement c. details d. a topic sentence. im e paragraphs reset nex next

When creating a budget, log fixed expenses before income. after income. after savings. at the top.

When you type the pwd command, you notice that your current location on the linux filesystem is the /usr/local directory. answer the following questions, assuming that your current directory is /usr/local for each question. a. which command could you use to change to the /usr directory using an absolute pathname? b. which command could you use to change to the /usr directory using a relative pathname? c. which command could you use to change to the /usr/local/share/info directory using an absolute pathname? d. which command could you use to change to the /usr/local/share/info directory using a relative pathname? e. which command could you use to change to the /etc directory using an absolute pathname? f. which command could you use to change to the /etc directory using a relative pathname?