Write an equation for this problem
one sunday angie did math homework for one hour, which was half the total time she spent on homework that day. how much time time did she spend on homework?

What is the quadric regression equation that fits these data

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.

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29