Its finals I have 2 questions in one, so double points!

Todd IS doing something wrong, but what?

AND I need help on this one pls.

(click between the first and second pics, the 1st pic is for th 1st question, while the 2nd is for the 2nd)

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

[tex]5 \times1 \frac{12}{13} [/tex] me