Cowling's Rule Is a Method for Calculating Pediatric Drug Dosages

Cowling's rule is a method for calculating pediatric drug dosages. If a denotes the adult dosage (in milligrams) and if t is the child's age (in years) , then the child's dosage is given by If the adult dose of a drug is 500 mg, how much should a 4 year-old child receive?

A) 100.77 milligrams
B) 99.07 milligrams
C) 102.47 milligrams
D) 104.17 milligrams
E) 105.87 milligrams