In a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had type AB
blood.
Find the probability that a person does not have type
AB blood. Round your answer to two decimal places.

Just tell me how to set up the equation.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )