In 2018, a nation’s population was 10 million. its nominal gdp was $40 billion, and its price index was 100. in 2019, its population had increased to 12 million, its nominal gdp had risen to $57.6 billion, and its price index had increased to 120. what was this nation’s economic growth rate during the year?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap