Arectangular billboard is 30 feet by 18 feet. if a gallon of paint covers 250 square feet, how many gallons should be purchased to cover the entire board?

6n^2-7n-75=0 solve by quadratic formula

What is the prime factorization of 23 ?me with this question

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.)