Integer problems that equal 36

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

Find the values of y: 3y^3(y^2+ 2/3y)=0

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142