Bens home improvement loan to build a security fence around his property was for $1,800.00 at 5.00% interest for 12 months. after four payments, the balance is 1,210.01. ben pays off the loan with the fifth payment. how much interest did he save by paying off the loan early?

How to do this , and can some one explain

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.