9000 dollars is placed in an account with an annual interest rate of 7.75%. How much will be in the account after 18 years, to the nearest cent?

Trigonometry hellllllpppppppp asap

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?