You work for a remote manufacturing plant and have been asked to provide some data about the cost of specific amounts of remote each remote, r, costs $3 to make, in addition to $2000 for labor. Write an expression to represent the total cost of manufacturing a remote. Then, use the expression to answer the following question.

X^2 + y^2 - 2x + 7y + 1 = 0

(x^2 - 2x) + (y^2 + 7y) + 1 = 0

(x^2 - 2x + 1) + (y^2 + 7y) + 1 = 0+1

(x^2 - 2x + 1) + (y^2 + 7y + 49/4) + 1 = 0+1+49/4

(x - 1)^2 + (y + 7/2)^2 + 1 = 0+1+49/4

(x - 1)^2 + (y + 7/2)^2 + 1-1 = 0+1+49/4-1

(x - 1)^2 + (y + 7/2)^2 = 49/4

(x - 1)^2 + (y + 7/2)^2 = (7/2)^2

The final answer is choice B