# New Checkpoint Added to Practice

We've added the following chapters to the Probability and Combinatorics Practice Map:

• Permutation with Repetition
• Combination with Repetition
• Principle of Inclusion and Exclusion 2

We will continue to extend the practice maps and add new maps on a regular basis. Thank you to all of our new Brilliant Squared members!

Note by Arron Kau
4 years, 1 month ago

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OMG you are sooo clever

- 3 years, 11 months ago

Do u accept debit cards ??

- 4 years, 1 month ago

We do accept debit cards, but have been seeing issues with international transactions. We are working to overcome this.

Banks tend to reject debit card transactions done internationally, especially if there is no history of such transactions.

Staff - 4 years, 1 month ago