Question

Is 789 a terminating decimal

Answer 1

No, because a terminating decimal means that it does HAVE a decimal point.  if it was a terminating decimal,  it would look like 7.89  

terminating means "end", if a number
-has a decimal point in it
-doesnt have the repeating sign over top of a number after the decimal (thats a repeating decimal)
then you can conclude that it is a terminating decimal.