An expression for calculating the drug dose for young children are: (2t^3 + t^2 -t)a / 48t^2 -24t, where t is the age of the child in years and a is the adult dose. If the adult dose for a pain k*****g drug is 250mg, then what is the dose to the nearest unit for:
a. a child of one year
b. an eight month of child
Simplify the expression first before substituting.
