What is 8 ones and 24 hundreds written as a fraction and decimal ?

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

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me