Activity 3. Let's do the combination Solve the following problems involving combinations. Box your final answer. 1. A math teacher requires each student to solve 5 out of 15 problems. Of the 15 problems, 3 are in 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: a. 5 Algebra problems? b. 5 Statistics or Geometry problems? c. 3 Statistics and 2 Geometry problems? 5 5/6 d. 3 Geometry and 2 Algebra0 problems? 2. A basket contains of 8 yellow ribbons and 4 green ribbons. In how many ways can 4 ribbons be drawn from a total of 12 ribbons a. If all ribbons are green? b. If 2 are yellow and 2 are green? c. If 1 is green and the rest are yellow? d. If at least 1 ribbon is yellow