To find the distance left to get to Bloomsfield after 3.5 hours of traveling, we can substitute \( h = 3.5 \) into the function \( D(h) = 440 - 65h \).
Let's calculate it step by step:
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Substitute \( h = 3.5 \) into the function: \[ D(3.5) = 440 - 65 \cdot 3.5 \]
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Calculate \( 65 \cdot 3.5 \): \[ 65 \cdot 3.5 = 227.5 \]
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Now substitute this value back into the equation: \[ D(3.5) = 440 - 227.5 \]
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Perform the subtraction: \[ D(3.5) = 212.5 \]
Thus, the distance left to get to Bloomsfield after 3.5 hours of traveling is \( \boxed{212.5} \) miles.