PLEASE HELP ME I AM FAILING. I WILL GIVE BRAINLIEST

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)