What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12