Answer:
tge radius is half the diameter so 1/2 of 3 1/2 =1.75 or 1 3/4
Y=x^2-5, solve for x
y+5=x^2
x=√(y+5) so
f^-1(x)=√(y+5)
Well you take the length of each section, which is "blank" rn, and multiply into 8? I don't know what will the meaning of "at most" be effective here, but if it's normal calculations, x = "blank" x 8
