What is the Slope of these two points (4,1) and (8,2)

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

Need solving this second acceleration problem.

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the