perry connects a blue garden hose and a green hose to make one ling hose is 16.5 feet. the garden hose 14.75 feet. how long is the combined hose
I'm assuming that you mean that one hose is 16.5 feet and that the other is 14.75 feet long.
In that case, the combined hose's length is 31.25 feet.
16.5 + 14.75 = 31.25