Advantages if using Algebra to Solve Linear Equations?

Please give me some advantages!

Does anyone know of a quizlet or something for edmentrum /plato algebra 1

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

Write the pair of fractions as a pair of fractions with a common denominator