Use this rule to find the number of feet of lumber in a log:"Take 4 inches off the diameter of the log, multiply the remainder ( in inches ) by one half ot itself, then by the length of the log in feet, and divide the product by 8." According to this rule, the number of feet of lumber in a log 12 feet long and 36 inches in diameter is
a. 96
b. 288
c. 360
d. 368
e. 768
please answer and explain
just express the words in symbols:
(36-4) * (36-4)/2 * 12 / 8 = 768