What is the flaw in gina's proof? (see attachment for the problem)

a) the ordered pairs of d and e were found using the midpoint formula
b) the slope of segments de and ac is not 0.
c) segments de and ac are parallel by construction
d) gina cannot construct the midpoint of a segment

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

What additional information is needed to prove that the triangles are congruent using the aas congruence theorem? o lolm o oama o zloa zlma o zlao – zlam

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?