Carmen reads 6/7 of a page in her library book in 12/5 minutes. at this rate, how many minutes does it take her to read the whole book if it has 140 pages?

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! "?