A topographic map. Two thick red lines go through areas with index contour lines with numbers 450 and 500. A thin black line wit
h hashes goes through areas with index contour lines with number 450.
Which value is a good estimate of the railroad’s average elevation?
450
480
500
550
Which value is a good estimate of the railroad’s average elevation?
450
480
500
550
2 answers:
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