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Activity 2. Which of the following is an arithmetic
sequence? Mark check (T) if it is an arithmetic
sequence and X if it is not on the space provided
before the number
1. 5, 10, 15, 20,
2. 4 7 10 13
3. 4, 9, 14, 19,
4. 10,5, 0,-5,-10,-15
5. 3,6, 12, 24,
*what is the answer​