your sister works H hours for D consecutive days. if she earns Rs N per hour, what is her total earning?

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?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Find the difference (8ab+a+2) - (3ab+6)