What is the first step in solving this system of equations?
2x - 5y = 7
3x + 7y = -3
A. Multiply the first equation by 7 and the second by 2.
B. Multiply the first equation by 3 and the second equation by -2.
C. Add the equations together.
D. Multiply the first equation by 2 and the second equation by 3.

Find the value of x that will make l ll m

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.)

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points