Jay has decided to save money from his paycheck every week. He has decided that he will increase the amount he saves each week by 10 dollars. If he started by saving 20 dollars this week, how much will he have saved in a month from now? Think carefully first, then make a decision:
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In one week he will have saved 20 + 10 = 30 dollars. In two weeks he will have saved 30 + 10 = 40 dollars. In three weeks he will have saved 40 + 10 = 50 dollars. At the end of week four, he will have saved 50 + 10 = 60 dollars. So, the answer is 60.
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