Question: 2. CombinatiOn Charts! (a) Here is a Combination Chart for the price of red and green marbles. Find the ? Then find the cost of

2. CombinatiOn Charts! (a) Here is a Combination Chart for the price of red and green marbles. Find the ? Then find the cost of each kind of marble. Red 8 4 .26 3 .37 (b) Now write the system of equations you just solved! (c) Write down a different system of equations with the same solution. 3. Among the most familiar obstacles in algebra learning is the socalled \"reversal error\" highlighted in Adding it Up (National Research Council, 2001, p. 264). Citing Clement et. a1. (1981), the authors point out that students often represent statements such as \"there are six times as many students as there are professors\" as GS=P. Discuss what you think is going 0n here. 4. A common Algebra 1 problem reads like this: Factor 3x + 36. Many students will answer x = 12. Discuss what think is going on here

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