Answer:
$900
Explanation:
Okay, the $1,000 isn't actually relevant to what we need to know, so just ignore that. We need to find how much $150 6 times is so our equation is:
150 x 6 = 900
So $900 was withdrawn from the account after 6 months
BONUS
If you want to find how much the student has left, then our equation would be:
1,000 - 900 = 100
So our student has $100 left