Answer:
Average growth= 11.20 feet
Step-by-step explanation:
<u>First, we need to calculate the total growth during those 312 years:</u>
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Total growth= 3,512 - 18
Total growth= 3,494 feet
<u>Now, the average growth:</u>
<u>Average growth= total growth / number of years</u>
Average growth= 3,494 / 312
y=4 (6,4)
hope this helps!
exponential decay