A variable cost is a constant amount per unit produced or used. Therefore, the total amount of the variable cost will change proportionately with volume or activity. Generally, a product's direct materials are a variable cost. To illustrate, let's assume that a bakery uses one pound of flour at a cost of $0.70 per pound for every loaf of bread it produces.
Most sports fields are one hectare in size. The Apple Bowl in Kelowna for instance is a 400 m running track and the grassy area inside is 1.12 hectares. The international rugby field pictured above is very close to one hectare in size, it is actually 1.0008 hectares. A perfect square is 100 meters by 100 meters is a hectare. An acre is about 0.4047 hectare and one hectare contains about 2.47 acres.
Not at all. An acre is an old British unit of area, still used in the U.S. which is now the only non-metric country. It's a very strange unit, equalling 43,560 square feet. A hectare is the standard metric unit of area and equals 10,000 square meters (i.e. the area of a square 100 meters on a side). A hectare is roughly 2.5 acres - 2.47 to be more precise.