d - 257x = 8328
According to the formula above what is the average credit card debt per US household for 2008? on bar graph shows $10,691 average debt, 2008 is 8 years after 2000.
Does this underestimate or overestimate the number displayed by the bar graph? by how much?
10691-257(8)=8328
Is this the correct way to start the problem?