The old mean was 51 now the mean is 42.33... (round that to 42) 51 - 42 = 9
Answer:
When in public, wear a mask
Just a teeny, weeny task
It helps keep is safe and sound
Health and care, all around
On your mouth, and on your nose
Good to cover both of those
Step-by-step explanation:
It's called the mask song you can ask Google assistant to sing it for you:)
So, the right option is 1. so if my ans was helpful u can follow me.
Lypypxupcouckgxlyxkkgxk gc kyxotxlyxoyxlyxltzlyxl h luck llyxlyxoyxlyxl