What am i missing here... In a large city, the average family spending in dollar

Question

What am i missing here...

In a large city, the average family spending in dollars for back-to-school shopping of supplies for the 2000, 20002, 20004 and 2006 years is listed in the chart What is the average increase in spending per year from the year 2000 to to the year 2002? (150-117)/2 What is the average increase in spending per year from the year 2004 to the year 2006? (268-187)/2 What is the average increase in spending per year from the year 2000 to to the year 2006? Estimate the instantaneous increase in spending in the year 2004 by taking the average of two average rates of change.

Explanation / Answer

We can see that the amount of spending has increased by 151 from years 2000 to 2006. We then divide that by 6 to get the average increase in spending per year. 151/6 = 25.17

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