How do I do congruent figures

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Describe what moves you could use to create the transformation of the original image shown at right

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit