A class of 50 students elected a class president.
Candidate A received 15 votes,
Candidate B received 25 votes.
The remaining students did not vote.
Which expression gives the percent of voters who voted for Candidate B?

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's

The answer is (a) 12-2(-1)(6)2(6)=12