27; The first stack is 3 x 3 (= 9). You then multiply 9 by 3 (for each of the 3 stacks). Basically, 3 x 3 x 3.
it wold be this 0.000032518
Option 1 and option 4 are inversely proportional.
Inversely proportional means when one variable increases the other decreases in proportion.
Option 1 is true. When the number of tractors increases, the time to plow a farm decreases.
Option 4 is also true. If height is too large, base area should be too less to equalize the area.
The average rate of change is the change in y divided by the change in x...
(f(8)-f(4))/(8-4)
(4-12)/4
-8/4
-2
So the average rate of change is -2.
