Which number can you add to get a sum of 0

a . -10
b. -5
c. 0
d. 5

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?