Mango is setting up folding chairs for a meeting. If he arranges the chairs in 9 rows each of the same length, he has additional 3 chairs left over. If he arranges the chairs
in 7 rows each of that same length again, he has 19 additional chairs left over,
• Write and solve an equation to determine how many chairs Mango has in each
row.
• Then, using that information, determine the total number of chairs Mango has.

What is the slope of the line shown below?

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 total area of the figure?