+229 720 seconds { 1 hour/60 minutes)=12 hours
what conversion ratio did he skip in this multiple - step conversion
A 1hour/60 Minutes
B 1minutes/60 seconds
C 60 minutes/1hour
D 60 seconds/1 minute
+434 Option C remeber we need to work our way up units here is also a unit multiplier chart for refrence
1 ft = 12 in
1m = 100 cm
1yd = 3ft
1cm = 10mm
1in = 2.54 cm
1mi = 5280 ft
1km = 1000 mm
1mi = 63360 in
