What is 80x4(1+(0.25x6))

800

Order of operations...

First .25x6 = 1.5
Second 1+1.5=2.5
Third 4x2.5 = 10
Fourth 80x10 = 800

80*4(1+(.25*6))=320*(2.5)=800
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800

80*4(1+(.25*6))=320*(2.5)=800