The student council is selling tickets to a school dance. One teacher decides to pay $10 for his class, and the students in the class have to pay $2 each. Another teacher pays $25 for her class, and the students only have to pay $1 each. Assuming both classes have the same number of students, how many students are in each class and how much did each class pay in total (including the teachers' money?)

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’s 8y+48 and factor each expression completely

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?