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(b) the grocery store was selling variety bags of apples. each bag contained x braeburn apples, y granny smith apples, and z honeycrisp apples. zahra bought 2 bags of apples. for each expression, identify whether it can be used to determine the total number of apples zahra bought. explain your answer.
(a) 2 + x + y + z
(b) 2x + 2y + 2z
(c)
(d) x + x + y + y + z + z
(e)
(f)