Ax^2 + Bx + c solve this equation by grouping. 5b^2 - 4b-1=0

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?

Subject: geometryneed with 6 and 7

Acoin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times