You have $10 comma 000 to invest. one bank pays 7% interest compounded quarterly and a second bank pays 3.9% interest compounded monthly. complete parts (a) and (b). a. use the formula for compound interest to write a function for the balance in each bank at any time t. write a function for the balance in the first bank at any time t. choose the correct answer below.

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?