Factor 7x^2+35y-49 what is the answer

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?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way