Why procedures are used and what must be the lastexecutable instruction in a
procedure?

Procedure are used to create and modifying the programs. Basically, it is grouping of instruction that can be used give direction of the flow of program. Control are given to the next term once the execution of the instruction get over. The steps of procedure are:

procedure are first executed the declaration instruction and then coding the procedure, then it will return to the directories and the last executable instruction is the termination of procedure.

answer; i do believe its (faster);

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).