At what position on the number line is the red dot located, thank you

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

I'm confused on this could anyone me and show me what i need to do to solve it.