The amount of a certain toxin in the water is normally distributed with mean 72.4 mg and standard deviation 20 mg. the probability that the amount of toxin exceeds the safe limit is 0.14. what is the safe limit?

Regina takes yoga classes 2 days a week at the community center the cost for the classes is $72 and Regina pays extra$12 to rent the yoga equipment used in class

Write a problem that uses a fraction.

In January, Emma was 62.25 in tall. In December, she was 65.5 inches tall. How much did Emma grow between January and December?

Find the greatest possible value for a+b+c+d if b is a positive integer and a, b, c, d satisfy the system of equations a+b=c b+c=d c+d=a

A system of equations is shown. x + y = 7 2x - y = - 1 What is the solution to the system of equations?

Assume that the following confidence interval for the difference in the mean time (in minutes) for male students to complete a statistics test (sample 1) and the mean time for female students to complete a statistics test (sample 2) was constructed

I have a real question how do you choose a brainiest answer

How can you solve this problem 2250=5000 x R x 5

Evelyn bought 12 chicken wings for $10. What was the cost of the wings in dollars per wing?

If a^2+b^2=c^2. then the triangle is a right triangle a triangle with side length of 16m 30m and 34m is a right triangle true or false