Answer:
99000
Explanation:
it can be seen that in the sequence every next value differs by a decimal place through moving the decimal or adding zeros towards the right. In other words, every term is multiplied by 10 to get the next comsecutive term. Therefore, if we put another zero in the end of 9900 or multiplu it by 10 we get 99000 which is our answer.
0.99, 9.9, 99, 990, 9900, 99000.
hope that helps...