Which describes a method for solving systems of equations in which you
plug in an expression for one variable written in the terms of the other?
O
A. Plug-in method
O
B. Substitution method
O
C. You can't tell.
D. Elimination method

Eric drew a scale drawing of a country park. the scale he used was 1 inch = 2.5 yards. the picnic area is 80 yards wide in real life. how wide is the picnic area in the drawing ?

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.

In an improper fraction, is the numerator equal to, less than, or greater than the denominator