The average human walk 5km per hour. if your PE teacher asks you to walk for 30minute in gym class how far can you walk

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

What are two examples of phase changes that skip a phase during transition?

Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker