To find the distance left to get to Bloomsfield after 3 1/2 hours of traveling, we need to substitute \( h = 3.5 \) into the function \( D(h) = 440 - 65h \).
Let's calculate:
\[ D(3.5) = 440 - 65 \times 3.5 \]
First, we calculate \( 65 \times 3.5 \):
\[ 65 \times 3.5 = 227.5 \]
Now, substitute this value back into the equation:
\[ D(3.5) = 440 - 227.5 = 212.5 \]
Thus, the distance left to get to Bloomsfield after 3.5 hours of traveling is 212.5 miles.