Do the ratios 20:18 and 3:2 form a proportion?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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.

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?