Today ian wants to run less than 7/12 mile. write a fraction with a denominator of 4 to represent a distance that is less than 7/12 mile

S-7< 3 i need answering this problem someone asap answer

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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.