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Answer :

The given expression is,

[tex]h(x)==0.1x-5[/tex]

Let us first consider, x = 2. We have,

[tex]h(2)=0.1\times2-5=-4.98[/tex]

Now, let us take x = 4, we have,

[tex]h(4)=0.1\times4-5=-4.6[/tex]

So the range is, -4.98 to -4.6. So, h (x) decreases by 0.3

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