Please support calculations with logical written out answers

Please support calculations with logical, written out answers.

Directions: Complete, scan, and submit the following exercises as a single PDF by the appropriate deadline. These exercises most definitely need to be submitted on separate paper. Remember to use full sentences to answer questions, include the appropriate units, and support your answers. If a calculation took place, it needs to be on the paper Work must be neat and logically laid out. Only the 3 formulas we covered in class are needed to do this The tables below contain information that will be useful for answering questions 1-6 Year CP YearCPI 1920 20.01970 38.8 1925 17.5 197553.8 1930 16.7 1980 82.4 1935 13.7 1985 107.6 1940 14.0 1990 130.7 1945 18.01995 152.4 1950 24.1 2000 166.1 1955 26.8 2005 195.3 1960 29.62008 215.3 1965 31.5 2009 211.1 Year Gas Price Year Gas Price $/Gal $/Gal 2000 2005 2.31 2007 2.84 2008 3.30 2009 1.92 1.47 1975 0.61 1980 1.36 1985 1.15 1990 1.04 1995 1.13

Solution

The general formula for percentage increase in price is = (New Price-Old Price)/Old Price * 100

% increase between 1975 and 1980 = (1.36-0.61)/0.61 * 100 = 122.950

% increase between 1980 and 1985 = (1.15 - 1.36)/1.36 * 100 = - 15.44. The negative sign shows that there is a decrease in price between the two periods.

% increase between 1975 and 2009 = (1.92-0.61)/0.61 * 100 = 214.754.

% increase between 2000 and 2008 = (3.30-1.47)/1.47 * 100 = 124.48

% increase between 2008 and 2009 = (1.92-3.30)/3.30 * 100 = -41.81. The negative sign shows that there is a decrease in prices.