A European business has offered to donate to the Salvation Army, but they are requiring a detailed report on expenditures. Chase and his brother are tasked with converting distances
measured in miles to kilometers. To estimate the number of kilometers, Chase takes the
number of miles, doubles it and then subtracts 20% of the result. Alex, Chase's brother, first
divides the number of miles by 5 and then multiplies the result by 8.