Calculate. 3.5 × 45 + 5.5 × 80% + 0.8 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 845 △ 7.8 + 14 × (2.75 + 1.25)] 45 △ 45 [(35 − 14) △ 710] with appropriate method

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