Please answer this ASAP

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

Is of - 4x + 2? a. 3 b. 4 c. 6 d. 5

Jamie has 7/10 of a pound of chicken to cook for dinner if she's going to put the chicken in between three people how much chicken will each person get