1000 test scores are approximately normally distributed with a mean of 60 and a standard deviation of 8, if a grade of B is assigned to the scores between 68 and 76, how many scores will receive a grade of B?.

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

What are the domain and range of the function f(x)=2^x+1

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189