What is the least common denominator of the rational expressions below? 4/x^2 - 7x + 1/x^2 - 4x - 21

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

The variable in a relation who’s value depends on the value of the independent variable is called what?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?