Help me to answer the questions

C(x)=(2x^2+5x)/(x^3+8) what is maximum c(x)?

Anurse is preventing teaching to a client who has a new prescription for paroxetine. the nurse should instruct the client to monitor for which of the following adverse effects? a. peripheral edema b. alopecia c. tinnitus d. drowsiness

Anurse is reviewing the medical record of a client who is receiving vancomycin daily. the nurse should review which of the following laboratory results prior to administering the next dose? a. blood glucose level b. serum creatinine level c. total iron-binding count d. thyroid-stimulating hormone level