Answer:
5
Step-by-step explanation:
1. in order to calculate all the required values, it needed to solve:
2. x≥5 means, that x∈[5;+∞), where beginnig is '5'.
An elevator goes up to the 16th floor. It then comes down 11 floors before going back up 15 floors. What floor is the elevator o
1 answer:
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