Whats 1 plus 1 please help

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Is a square always, sometimes, or never a parallelogram