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Answer:
1a. 104
1b. 8x
1c. 13y
1d. xy
1e. 3+y
1f. x+7
1g. x-y
1h. x divided by y
1i. x+3
1j. 3x
1k. y-5
1l. 1/5y
2a. 26
2b. x+9