What is the greatest value in the range of f(x)=x^2-5 for the domain {-5, -3, 0, 1, 2}?

What is the range of the inverse of the given function f(x)=√x-2

Dimitri used a coupon that saved him 80 percent, or $6.87. he paid $34.35 for the items.dimitri used a coupon that saved him 80 percent, or $27.48. he paid $34.35 for the items.dimitri used a coupon that saved him 80 percent, or $6.87. the price of the items before the discount was $34.35.dimitri used a coupon that saved him 80 percent, or $27.48. the price of the items before the discount was $34.35.

Which is the highest value 4.008,4.08,4.8 or 0.480?