Scores on an exam are normally distributed with a mean is 71 and a standard deviation is 8. Find the percent of scores that are

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Last week jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. about how many miles did jason walk last week?

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary