shortage Why can't producers increase supply if there is a sudden increase in demand? you would have to increase the price as well because otherwise it would cost too much to increase supply
Addition (often signified by the plus symbol +) is one of the four elementary, mathematical operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together; making a total of 5 apples.
Inverse somewhat means the opposite. The inverse of addition is the opposite of addition which is subtraction (the opposite of adding 5 is subtracting 5). Subtraction undoes addition and vice versa. So they are inverse operations of each other. Another basic pair of inverse operations are multiplication and division.