If f(x)= -x-1, what is f(-4)?
a. -3
b. 3
c. 5
d. -5

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

1. what is the measure of ∠abc? what is the measure of ∠abd?

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?