2.6. Combination Problems http://www.ck12.org
6.
2 8 MATH I I I (PRB) 3 (nCr) 4 ENTER7.1 9 MATH I I I (PRB) 3 (nCr) 6 ENTER8.3 3 MATH I I I (PRB) 3 (nCr) 2 ENTER9.2 7 MATH I I I (PRB) 3 (nCr) 8 ENTER10.2 0 MATH I I I (PRB) 3 (nCr) 4 ENTER11.3 8 MATH I I I (PRB) 3 (nCr) 9 ENTER