The gre is an entrance exam that most students are required to take upon entering graduate school. in 2014, the combined scores for the verbal and quantitative sections were approximately normally distributed with a mean of 310 and a standard deviation of 12.
what percent of scores were between 286 and 322? round your answer to the nearest whole number.

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

Anyone know? will mark brainliest if correct

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.