Abrother and a sister are in the same math class. there are 8 boys and 20 girls in the class. one boy and one girl are randomly chosen. what is the probability that the brother and sister are chosen? write your answer as a fraction in simplest form.

How can you decide witch operations to use to slice a two step equation

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Evaluate the expression. (9 + 5)(3 + 2)0