Because when you multiply by 10, it adds a zero to the end of the number, like 12*10 = 120, so vise versa for dividing
It could be all it could be one but the true answer is I’m not sure which one
I think it’s how far an object travels from starting point to ending point.
I'm pretty sure it's 27.25 because 109 ÷ 4= 27.25
7 3/10 in percent would be

%
730%percent means over 100
So... 730% = 730/100 = 7.3