Discover new perspectives and gain insights with IDNLearn.com's diverse answers. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

The zoo needs to replace some of the railroad tracks that support their train ride. The total length of the track is 500 feet,
and there are three sections that need to be replaced. These sections measure 61, 83, and 63 feet. How much of the zoo
railroad track does not need to be replaced?