Six times a number +4 is the same as the number -11

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Name the most appropriate metric unit for each measurement like the mass of cow

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?