Round each number to the nearest 10 and 1000

What is the value of r of the geometric series?

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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.