I need help with this ASAP… it is due tomorrow and I have to get it done tonight.. please no links

What excerpt from a student essay maintains the most objective tone

Find the center and the radius of the circle with the equation: x^-2x+y^2+4y+1=0

Which of the following arguments uses a non sequitur fallacy? a. if we allow students to wear caps to school, soon we'll have to let them wear gang colors. b. you should vote for sylvia for class president because everyone else on the squad is voting for her. c. regulations on motorists should be lifted because factories are a bigger source of pollution. d. the gray wolves of winter falls park should be protected because they need our support.