Every week, nina used 5 l of water from her rain barrel to water her plants. she did this until her rain barrel was empty. when nina first started watering, her rain barrel contained 75 l of water. which sketch represents this situation?

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! "?