Answer:
HI what are you guys up to I hope not sleep. SMH
Explanation:
It is <span>informal language used in a specific location, for I recently um, "learned" this in "class" so yeah go with B.</span>
I remember that being true from when i read that
Answer:
hertz
Explanation:
Usually frequency is measured in the hertz unit, named in honor of the 19th-century German physicist Heinrich Rudolf Hertz. The hertz measurement, abbreviated Hz, is the number of waves that pass by per second. For example, an "A" note on a violin string vibrates at about 440 Hz (440 vibrations per second).
