Someone help me with this please

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

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .