Only 1 question i need
1. solve the following equation for x: 2x + 5y = 8.
a. x = 5 over 2y +4
b. x = -5 over 2y -4
c. x = 5 over 2y -4
d. x = -5 over 2y +4

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

Hello, i need compare km^2 and km. what's difference in this?

How do i simply this radical expression?