Answer:
QBasic Programming
REM PROGRAM TO DISPLAY VOLUME OF CUBE. CLS. INPUT “ENTER LENGTH”; L. ...
USING SUB PROCEDURE.
DECLARE SUB VOLUME(L) CLS. INPUT “ENTER LENGTH”; L. ...
SUB VOLUME (L) V = L ^ 3. PRINT “VOLUME OF CUBE ”; V. ...
USING FUNCTION PROCEDURE.
DECLARE FUNCTION VOLUME (L) CLS. ...
FUNCTION VOLUME (L) VOLUME = L ^ 3.