The number of students varied jointly as the number of teachers and the number of administrators squared. 1000 students were present when there were 5 teachers and 2 administrators. How many students were there with 8 teachers and 1 administrator?

What value of x is in the solution set of 4x – 12 s 16 + 8x?

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.

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?