Find the missing length indicated. Leave your answer in simplest radical form. Please help due today!!

Which of the following represents the range of the graph of f(x) below

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?