Using ONLY THE ACRONYMS WE STUDIED IN THIS COURSE, complete the activity below by filling in blank spaces. In the Short run, does not change, but A/ can change. The graph for A/ reach zero. In the long run, decreases constantly, but will never A/ can be varied. The acronym for total cost per unit is A The acronym for the cost of producing one additional unit is The A/ "hugs" or "envelopes" a series of A/ curves. The total amount of output of a firm is referred to as OR