20 points
which value on the number line is the best estimate of the center of the data set?

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

What is the volume of this container?