I need help with this bc i dont understand it can somebody help me plz i'll give you 40 points for it

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin