Which expressions are equivalent to 8(-10x+3.5y-7)? Select two options. -80x+24.5y-56
-80x+28y-56
-80x+28y+56
4(-20x+7y-14)
-4(-20x+7y-14)

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?

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

What is the solution set of the quadratic inequality x^2-5< or equal to 0