Working 8 hours a days,15 people can do a piece of work in 12 days. Working 9 hours a day how many people will complete the same work in 16 days?By making table.​

Solve the system of equations. y= 2x y= x^2 - 15

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.

What is the equation of a line passing through (-6,5) and having a slope of 1/3