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Numbers starting with a 1 and followed by only 0s (such 10, 100, 1,000,10,000, and so forth) are called powers of ten, and they're easy to represent as "exponents". Powers of ten are the result of multiplying 10 times itself any number of times.
the 2nd expression is the answer
Answer: 56 people in line are not senior citizens
Step-by-step explanation: