It is written as 'a billion dollars' but is it correct? Shouldn't 'a billion dollar' supposed to be 'billion dollars'?
Answer from a Native speaker
The phrase "a billion dollars" is correctly used in this fragment. The anchor says "a billion dollars" because she is making the amount a countable number for the viewers to grasp how much was stolen. If she said "billions of dollars" it would be considered an uncountable number and wouldn't emphasize the amount stolen.
1/2 STEP LEARN