Of 13 possible books, you plan to take 3 with you on vacation. how many different collections of 3 books can you take?

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

What is the value of the expression below? (81^2)^1/8

Choose the more precise measurement. 26.4 cm or 8.39 cm