The scores on an exam are normally distributed, with a mean of 74 and a standard deviation of 7. what percent of the scores are less than 81?
50%

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x