Which of the following are not congraent theories for right angles AA, HA, HH

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

Pranza plotted point a in the coordinate plane below.

Which of the functions graphed below has a removable discontinuity?