Bob enters cycling competitions every single week and hopes to win the 100 dollar grand prize each time. For the first 2 weeks, he managed first place and got 100 dollars each week. He is saving up for a puppy that costs 1000 dollars. What is the minimum number of additional weeks Bob must win first place?
Two weeks already passed and Bob has 200 dollars.
Bob needs 1000-200=
<gadget id="calculator">1000-200</gadget>
<output>800</output>
800 more dollars.
Bob needs to win the competition for at least 800/100=
<gadget id="calculator">800/100</gadget>
<output>8</output>
8 more weeks.

<result>8</result>