I want it now pls help me im not good in maths

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

The variable in a relation who’s value depends on the value of the independent variable is called what?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels