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Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

The length of the shadow of a building is 120 meters, as shown below: building shadow 120 m what is the height of the building? (1 point)