Hey Mike,

Could you please explain #22 calc from practice test 1,thanks!

Surely! First thing you gotta do is read the question carefully, as the easiest way to make a mistake here is to miss a detail. You’re asked about only the **Agriculture/natural resources** line of the table, and you want to look at only the **2008** and **2010** columns to compare.

Then you gotta read the table carefully, including the note at the bottom, which tells you that the numbers are in **thousands of dollars**.

So the numbers you want are 358,708 for 2008, and 488,106 for 2010. What was the average growth over the two years?

Well the total growth was 488,106 – 358,708 = 129,398. That’s the growth over TWO years, so to find the average we divide by two.

129,398/2 = 64,699

That rounds to 65,000. And because that represents **thousands of dollars**, we multiply by 1,000 and add the dollar sign to land on choice **B**.