so if for every 11 feet you get 2 inches then for every 5.5 feet you get 1 cm. so if you break up the total number of feet into 220+16 it will be easier to solve. because 11*20=220ft so then you know you can do 2*20=40cm. now you can simplify 16 into 11+5 and get 11*1=11ft and 2*1=2cm. now youre left with 5ft and 5.5ft is 1 cm so you know that you have just under 1 cm. now add them all up 220ft+11ft+5ft=236ft and 40cm+2cm=42 cm
