Given that a farmer bought a number of pigs for $ 160, but, however, 8 of them died before he could sell the rest at a profit of 6 per pig, and his total profit was $ 8, to determine how many pigs did he originally buy the following calculation must be performed:
Not A because regular means all sides are equal. B has to be the answer because the others are not. Not C because a right triangle is not regular, i.e. and equilateral triangle. Not D because a rectangle has different side lengths.
