Is the gcf of of any two odd numbers always odd? and an explaination or counter example

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf