Can someone help me please

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

What is the range for 31,39,29,34,37,24,36,33,34,28

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers