A science class has 9 girls and l boy in the seventh grade and 3 girls and 9 boys in the eighth grade. The teacher randomly sele
cts a seventh grader and an elghth grader from the class for a competition. What is the probability that the students she selects are both boys?
Write your answer as a fraction in simplest form.
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The answer is 4.5 for the side length of the pentagon and 7.5 is the side length for the triangle because 7.5*3(3 sides) = 22.5 and 4.5*5(5 sides)= 22.5. The perimeter is 22.5