Matthew, an experimental psychologist, indicates that the age at which a child learns to walk is normally distributed with a mean age of 10.9 months and a standard deviation of .5 months. If Matthew classifies an early walker as a child who is among the youngest 10% to walk, then by what age must a child walk to be identified as an early walker

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

What is the reflection image of (5,-3) across the line y = -x?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?