I had this homework and i just wanted to make sure of my answers

What is sin 7x/4 ? i need on this urgent trig

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

Which of the following equations is equivalent to x/3-6/x=1