The population of a town increased by 10% per year in 2009, 2010, and 2011. if the population of the town at the beginning of 2009 was 40,000, what was it at the end of 2011?

Next, chad created this graph with ordered pairs that show the possible ratios of the number of damage to defense cards in his deck. what error chad make?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Pls! does anybody know a shortcut for answering these types of questions in the future?