Step-by-step explanation:
16 arrangement can be done
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The correct answer is option A
Instead of the division sign, it suppose to be multiply.
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Answer:
Number 27:Population density refers to the number of people who live in a defined land area (usually square miles or square kilometers). So, if two million people live in ten square miles, the population density is two hundred thousand people per square mile.
Number 29:Your heart beats about 100,000 times in one day. And about 35 million times in a year.And 128 beats in one minute
Step-by-step explanation:
It would be 56 seconds until both flicker at the same time
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