Well u know 4/20 equals 0.2 as a decimal but as a percentage it is 20% so 4/20 as a percentage is 20%
N^2 + 25 if you mean *2 is squared.
Answer:
ly/3fcEdSx link for answer

so,

it equals 12.49 or 12.5 depending on rounding
I hope this helps!
Using logarithms property of log(x)+log(y)=log(xy)
so here, you can sum the equation to;

so you can simply say that;

and by multiplying (x+6)*(x-6)

and as you know also that;

is same as

so you can simply state it as;

And you can check your work by substituting with 10 instead of x in the original function.
Hope this helps!