The​ architect's side view drawing of a​ saltbox-style house shows a post that supports the roof ridge. The support post is 9 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? Total length from front to back is 30.

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.