12. Cassidy has a bag of 72 red beads and 90 blue beads. She would like to use the beads to make bracelets that have the same ratio of red to blue beads as in the bag. If a bracelet has 15 blue beads, how many red beads does it have?​

Which graph represents the function g(x) = |x + 4| + 2?

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 value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?