Mathematics, 26.10.2020 16:40, MZ2017

a roller coaster climbs 105 feet on the first hill then drops 30 feet down. on the second hill the roller coaster climbs another 50 feet then drops 20 feet. what is the height at the end of the second hill? write an addition expression and evaluate

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a roller coaster climbs 105 feet on the first hill then drops 30 feet down. on the second hill the r...