Help please like hurry I’ve been out of school for 8 months just dumped us in another school never done Algebra in my life and they said if I don’t finish this packet I will get a 0

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

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Twelve less than a number is at most 20