Solve the equation: 10y-7=27

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

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

Factor the polynomial. b^2 + 4b + 4