Explain how you can determine that the following system has one unique solution – without actually solving the system. 2x+y=4 , 2y=6-2x

Ahomeowner has an octagonal gazebo inside a circular area. each vertex of the gazebo lies on the circumference of the circular area. area that is inside the circle, but outside the gazebo, requires mulch. this area is represented by the circular area the square foot of mulch this cost is represented by the function g/m), where m is the area requiring mu gim)-150m which expression represents the cost of the mulch based on the radius of the cirçle? unction mix), where x is the length of the radius of the circle in feet the homeowner estimates that he will pay $1.50 per