i’m so confused can someone please help i will give thanks!

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

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: