What's the best app for graphing answers like domain y intercept all those things

An advertisement is on a flyer that has a thickness of 8.2 × 10-5 meters. each measurement below is the thickness of a stack of flyers. drag each measurement to the correct stack.

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

What is the total area of the figure?