In one week there will be 50+20=<<50+20=70>>70 seashells

In two weeks there will be 70+20=<<70+20=90>>90 seashells

In three weeks there will be 90+20=<<90+20=110>>110 seashells

In four weeks there will be 110+20=<<110+20=130>>130 seashells

# Answer

130
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Each week Carina puts 20 more seashells in a jar than she did the week before. If there are 50 seashells in the jar this week, how many will there be in a month?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
130
Each week Carina puts 20 more seashells in a jar than she did the week before. If there are 50 seashells in the jar this week, how many will there be in a month?
train