MATH 8TH GRADE LINEAR INEQUALITY please help

What are the soultion(s) to the quadratic equation 40- x^2=0

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.