How are the expressions 0.4+1.5 and 1.5 +0.4 alike? different?

Factor the expression using gcf 9b+45

F(x)=5/6x+3 which of the following is true

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?