1. Landon is building two separate sandboxes. The length of sandbox A is 5 feet longer than its width. The width of sandbox B is 2 feet less than the width of sandbox A. The length of sandbox B is 2 times its width. If the both sandboxes have the same perimeter, then find the dimensions of each sandbox.

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?