7. At a store, a bottle of ketchup costs x dollars, and a bottle of mustard costs y dollars. One
customer bought 2 bottles of ketchup and 1 bottle of mustard for $11. Another customer
bought 6 bottles of ketchup and 5 bottles of mustard for $38. How much does the ketchup
cost? How much does the mustard cost?

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

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.)

How many grams the dog will eat in 3 days?