Anika is hiking on a rectangles trail at the national park. There are four resting spots along the corners of the trail. Oh the map, they are naked with the coordinations if (-2,2) (1,2) (1,-2) and (-2,-2). If each unit represents 1 mile find the perimeter of the trail in miles, using coordinates

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.)

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)