Use green's theorem to evaluate f · dr. c (check the orientation of the curve before applying the theorem.) f(x, y) = y cos(x) − xy sin(x), xy + x cos(x) , c is the triangle from (0, 0) to (0, 6) to (2, 0) to (0, 0)

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 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! "?