18 players and 3 coaches. this year, 162 players signed up to play soccer. how many coaches are needed?

What is the value of x in the this question ?

286 divided by 457.6 what is the quotient?

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?