Aclass of 34 students elected a class secretary. there were 17 votes for candidate a and 13 votes for candidate b. the remaining students did not vote. which expression gives the percent of voters who voted for candidate b?

43.3%

Steps:

List the votes in a table:

Vote

Candidate A    17

Candidate B     13

No Vote:           14    (34-30)

The fraction of the voters for candidate B is

13/(13+17)=0.4333...

This corresponds to 100*0.4333...=43.33...% and rounded to 43.3%

Note that the question asks for percentage of "voters" not "students"

ok then what happened.