order of operations

Find the value of the expression below for r=4 and t=2

t^3-r+20 divided by r
9
72
6* I chose this one
40

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asked by alex
  1. why not just use "/" for division?

    6 is correct if you meant

    t^3 - r + (20/r)

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    posted by Steve
  2. It's 9 not 6 (9)

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