Procedure. 1  Measure the height of the tree you are studying. 2  Measure the diameter of the tree you are studying. 3  Remember the formula to find the area of a circle is (A=r2 x p). 4  Now use this number to calculate the area of your tree.  Don't relax 1  now! There are 12 board feet of lumber for every one cubic foot, so multiply cubic feet by  12.
For females, the average cost of groceries for 1 per month is about two hundred eighty-three dollars ($283). For males, the average cost of groceries for 1 per month is closer to three hundred twenty dollars ($320). You can view the raw data at USDA.nswer: According to the United States Department of Agriculture, Center for Nutrition Policy and Promotion, the average cost of groceries for 1 per month in the United States is approximately three hundred one dollars ($301.00) for all categories combined.
The average American family of four spends amount $100-200 a week on groceries. Though my family has personally spent up to $600 an week on groceries when splurging, on heavy meals, large amount of meat, sodas and snacks. But for my family of four we spend about $250 a week, give or take.hey assume that all meals and snacks are eaten at home, which lowers the cost. In June 2010, the thrifty plan for a family of 4 per week was $134.50. Low-cost = $175.10 Moderate cost = $219.10 Liberal cost = $265.90.