Brianne saves $10 x 2 = $<<10*2=20>>20 in February.

She will save $20 x 2 = $<<20*2=40>>40 in March.

She will save $40 x 2 = $<<40*2=80>>80 in April.

Therefore, she will save $80 x 2 = $<<80*2=160>>160 in May.

# Answer

160
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Brianne saves $10 in January. Each month, she saves twice as much as her previous month's savings. How much will she save in May?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
160
Brianne saves $10 in January. Each month, she saves twice as much as her previous month's savings. How much will she save in May?
train