Urban's barbershop has two barbers available to cut customer's hair. both barbers provide roughly the same experience and skill, but one is just a little bit slower than the other. the process flow below shows that all customers go through steps a and b and then can be served at either of the two barbers at step c. the process ends for all customers at step d. the numbers in parentheses indicate the minutes it takes that activity to process a customer. this process can serve customers per hour. (enter your response as an integer).

When interest is compounded continuously, the amount of money increases at a rate proportional to the amount s present at time t, that is, ds/dt = rs, where r is the annual rate of interest. (a) find the amount of money accrued at the end of 3 years when $4000 is deposited in a savings account drawing 5 3 4 % annual interest compounded continuously. (round your answer to the nearest cent.) $ (b) in how many years will the initial sum deposited have doubled? (round your answer to the nearest year.) years (c) use a calculator to compare the amount obtained in part (a) with the amount s = 4000 1 + 1 4 (0.0575) 3(4) that is accrued when interest is compounded quarterly. (round your answer to the nearest cent.) s = $