Welcome! Let’s start immediately. Solve the following problem. Then read the instructions below it to move on.

You should have a 4 digit number after rounding and multiplying by 1000. Substitute that number in the following url at the end in place of nnnn:

https://robert-nicoud.ch/vivian/ap-calculus-ab/caching-games/caching-game-1/caching1-nnnn/

Copy-paste the url in your browser and if you solved the question correctly, you’ll find the next question. On the other hand, if you reach a “404: Page not found”, that means you made a mistake…