Solve for x. Round your answer to the nearest tenth

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?