Simplify: –6(x – 3) – 4(y + 5) + (–5)(7 – 2b)
a. –6x –4y – 10b – 3
b. –6x –4y + 10b – 37
c. –6x –4y + 10b + 3
d. –6x –4y + 10b + 33
i have a difficult time combining like terms. can someone explain it to me?

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