For numbers 12 - 15. A Math teacher requires each student to solve 5 out of 15 problems. Of the 15 problems, 3 are Statistics, 7 are in Algebra, and 5 are in Geometry. In how many ways can a student select each of the following for the 5 problems: 12. S algebra problems; Which of the following represents it? c. C(7,7) b. C(7,5) 13. How many combinations are there? a. C(5,7) d. C(5,5) а. 21 b. 31 с. 120 d. 1,260 14.3 Statistics and 2 Geometry problems? What is the correct representation? a. C(3,3). C(5,2) 15. What is the combination for number14? b. C(3,3)+ C(5,2)

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