PLLZZ HELP ME OUT WITH THIS 1. A driver’s elevation is -30 feet relative to sea level. She dives down 12 feet. What is the elevation after the dive?Show your work.

2. Explain(In your own word) how to model -5+5+(-2) on the number line. (PS DON'T DO NUMBER LINE JUST EXAPLAIN )

3. How do you subtract an integer from another integer without using a number line ? Give an example.

4.Solve following problems(Show your work for subtraction)

(-1)+(-5)= b) (-1)+(9)= c)1-(-2)=

d) 19-(-19)= e) -87-(-87) f) 0-(-5)=

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.)