Answer:
A. 3.215 = 3215/10000, 0.454545... = 5/11
Step-by-step explanation:
A real number that can be written as a fraction of two integers . Decimal expansions for rational numbers can be either terminating or repeating decimals.
in A, first decimal terminates, and the second decimal has repeating (45) part, which implies its a rational number.
