Alan has LaTeX: xx chocolate bars and gets 10 more bars. He gives away half of his chocolate, and then gets another 10 bars. In terms of LaTeX: xx, how many chocolate bars does Alan now have? Group of answer choices

A: x+15
B: x+20
C: x/2
D: x/2 + 15

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Based on calculations, students should have 10.4 grams of powder after conducting an experiment. the students get these results: 10.2 grams, 10.4 grams, 10.3 grams, 10.4 grams, and 10.5 grams. which words best describe this data? check all that apply. a- accurate b- falsified c-invalid d-precise e-redundant