So, when Price equals MR = min ATC = MC = $21, this firm will break even. To see this compute TR for the firm when it produces 10 units and sells each unit for $21: TR = $210. Notice that this is the same as the firmâs TC: thus, the firm earns zero economic profit. e.
exists and is an alternate of . The anglerfish can get up to 3.3 feet but most others are about under a foot long such as 8 inches. The anglerfish can get up to 3.3 feet but most others are about under a foot long such as 8 inches.
At maturity, catfish come in a wide range of sizes. Some little guys can be as tiny as 1 1/2 to 2 inches long (that's about 4 to 5 centimeters) [source: Encyclopedia Britannica]. Others can grow to absolutely mammoth sizes; they're definitely contenders for the title of world's largest freshwater fish.