The amount of money Diana earned in August is 3 * $150 = $<<3*150=450>>450.

The amount of money Diana earned in September is 2 * $450 = $<<2*450=900>>900.

The total amount of money Diana earned over the three months is $150 + $450 + $900 = $<<150+450+900=1500>>1500.

# Answer

1500
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Diana earned $150 in July. She earned 3 times this amount in August. In September, She earned twice the money she earned in August. How much money did Diana earn over these three months?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
1500
Diana earned $150 in July. She earned 3 times this amount in August. In September, She earned twice the money she earned in August. How much money did Diana earn over these three months?
train