Chapter 1.CR, Problem 13CR

Reminder Round all answers to two decimal places unless otherwise indicated.

Timber Values Under Scribner Scale The following table compares dollar values per standard cord $\left(128\text{cubic}\text{feet}\right)$ to values per thousand board-feet (MBF) under the Scribner scale for trees $12\text{inches}$ in diameter.

Values per cord	Values per MRF Scribner
$\$20$	$\$68.00$
$\$24$	$\$81.60$
$\$28$	$\$95.20$
$\$36$	$\$122.40$

a. Make a table showing the average rate of change for each interval of values.

b. Would you expect the value per MBF Scribner to have a limiting value?

c. If you are selling timber from trees $12\text{inches}$ in diameter, which is the better price: $\$25$ per cord or $\$71$ per MBF Scribner? What if you are buying the timber?