Consider the following problem: A rectangular lot whose perimeter is 1600 feet is fenced along three sides. An expensive fencing alongthe lot's length costs $20 per foot. An inexpensive fenting along the two side widths costs only $5 per foot. The total cost of the fencing along the three sides comes to $13,000 What are the let's dimensions? What is the algebraic expression for the statement \"The total cost of the fencing along the three sides comes to $'i 3,000?" Selett one: OA. 20x + By = 13000 OB. x + y =13000 0C. 5x+20y=13000 OD. 20x+10y=13000 \f\fSolve the system y = [1f21x + 2 y = [Bf-41x + 2. Select one: 0a. (-4, 4} QB. {4:2, 3:4) 0c. in. 2} OD. No solution Question 9 Not yet answered Points out of 1 .00 t? Flag question When using the addition method to solve the system 4}: y = 22 Ex + 4y = 26. what is the first best step? Select one: on. Add the first equation to the second equation. OB. Multiply 4 to each ofthe first equation and add the equations. 0C. Multiply 4 to each of the first equation and add the equations. OD. Multiply 3 to each ofthe first equation and 4 to each ofthe second equation and add them