A box contains different-colored marbles. If P(blue) = , P(green) = , and P(blue and green) = , which statement is true?

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.