HELP!! What is the y-intercept and what does it represent in the context of the problem?
(When you zoom in the picture gets clearer.)

The triangles are similar. what is the value of x? show your work.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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.)