10 REM CULVERT DESIGN 15 CLS 20 INPUT "LENGTH(FT) ?" ,A 21 INPUT "WIDTH (FT) ?" ,E 21.5 LET A=A*E/43560 22 PRINT "LAND AREA (ACRES) = " ,A 23 COLOR YELLOW ,BLACK 25 PRINT " FLAT 0.2-0.3" 27 PRINT " ROLLING 0.4-0.5" 28 PRINT " HILLY 0.6-0.8" 29 COLOR WHITE ,BLACK 30 INPUT "TALBOT'S COEFFICIENT?" ,C 35 PRINT "TALBOT'S COEFFICIENT = " ,C 40 LET B=A*A*A 45 LET D=1 46 LET D=D+1 48 IF D*D*D*D0 THEN GOTO 60 90 END