Mila is three years older than Cassie who is four years younger than Robert. How old is Mila, if Robert is r years old ?

Question

Write an expression for each statement and then simplify it, if possible.

Answer 1

 Robert is r years old

Cassie is 4  years younger than Robert, so

Cassie is r - 4 years old

Mila is 3 years older than Cassie so she is r - 4 +3 = r - 1

So :

Robert = r years old

Cassie =  r - 4 years old

Mila = r - 1  years old