Helen earned $35,000 in her first year. She received a $2,000 raise each year, so after 11 years she would have earned $35,000 + $2,000 * 10 = $57,000. A linear regression was performed on data relating student heights and arm spans. The line of best fit was y = 1.0x + 5.2. A person 1.67m tall would have an arm span of 1.67 * 1.0 + 5.2 = 6.87m and a person 1.77m tall would have an arm span of 1.77 * 1.0 + 5.2 = 6.97m. A person with an arm span of