In 2009, the life expectancy of males in a certain country was 73 years and increasing at a rate of 0.4 year per year. Model this situation by a linear equation; use this equation to estimate the life expectancy of a male born in the country in 2026. Identify the appropriate problem solving method. OA. The Three-Way Principle B. Try a Simpler Version of the Problem c. Relate a New Problem to an Older One OD. Be Systematic Let x be the number of years since 2009 and let y be the life expectancy of males. Choose the equation of a line that models this situation. OA. y=-0.4x+73 OB. y=0.4x-73 c. y=0.4x+73 OD. y=-0.4x-73 Estimate the life expectancy of a male born in 2026. y= years (Type an integer or a decimal.)