Select the correct answer. Describe the solution to the system of equations graphed below.
The system has no solutions.
The system has infinitely many solutions of the form y = -x + 3, where x is any real number.
The system has a unique solution at (2,1).
O
The system has a unique solution at (1,2).

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.

What is perpendicular to y=-1/2x+11

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music.they were asked how they like three types of music: rock, country western and jazz.the results are summarized below: no one dislikes all three types of music.six like all three types of music.eleven don’t like country western.sixteen like jazz.three like country western and jazz, but not rock.six don’t like rock.eight like rock and country western.seven don’t like jazz.how many students were surveyed?