The purpose of this task is for students to solve a mathematical problem using points in the coordinate plane. This task also helps lay the foundation for understanding operations on signed numbers without formally introducing those notions, which are not expected until 7th grade (see 7.NS.1).
Theresa Ann Lane Haggard is around 56 years old. She was 33 in 1993 when she married Merle, who was 56 then (born April 6, 1937). She was his 5th wife.
Also, here is a link to an article on Nell Cropsey and the Elizabeth City Ghost Walk: http://www.dailyadvance.com/features/annual-ghost-walk-celebrates-story-nell-cropsey-708735 She was known as Nell Cropsey, and there have been books written about her murder under this name. She was less than 20 years of age when she disappeared from the home of her father, William H. Cropsey, on Riverside Ave. in Elizabeth City, NC. She had had an argument one evening with a suitor, Jim Wilcox, son of the...