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p. s. show your work

Step-by-step explanation:

The formula for the computation of a percentage change is ...

  percent change = ((new value) - (old value))/(old value) × 100%

This can be rearranged to ...

  percent change = ((new value)/(old value) - 1) × 100%

Here, your "old value" is "2b". All of the "new value" numbers have "b" as a factor, so the "b" in numerator and denominator of the ratio cancel and you're left with ...

  percent change = ((coefficient of b)/2 -1) × 100%

Since you have several of these to do, it is convenient to let a calculator or spreadsheet handle the list of numbers. (See the attachment.)

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When the "percent change" is a negative number, it means the "new value" is smaller by that percentage. When it is positive, it means the "new value" is larger.

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If you want to run through the formula by hand for one of the numbers, for the first one that looks like ...

  percent change = (0.04/2 -1)×100% = (.02 -1)×100% = -0.98×100% = -98%

  This is interpreted to mean that 0.04b is smaller than 2b by 98%.

5.5

step-by-step explanation:

answ5

step-by-step explanation:

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