a bag with 10 marbles has 3 yellow marbles , 2 blue marbles, and 5 red marbles. A marble is chosen from the bag at random. What is the probability that it is yellow or blue? Write your answer as a fraction in simplest t form! (PLEASE HELP ASAP!! I WILL MARK BRAINLIEST! C: )

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Explain why the factor 1.5 is broke. into two numbers in the model.

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)