(Solved): 4. Study the following block, then answer the questions below: (a) How many variables are declared ...

4. Study the following block, then answer the questions below: (a) How many variables are declared? (b) How many variable types are used? (c) What are the outputs if lv-qty_num has a value of 20? (d) What are the outputs if 1v_qty_num has a value of 5 ?