The number of cell phone subscribers in a country in the years 2000-2005 was projected to follow the equation n(t) = 39t + 64 million subscribers in year t (t = 0 represents january 2000). the average annual revenue per cell phone user was $350 in 2000. if we assume that due to competition the revenue per cell phone user decreases continuously at an annual rate of 20%, we can model the annual revenue as r(t) = 350(39t + 72)e^0.2t million dollars.

(a) determine when to the nearest 0.1 year the revenue was projected to peak.

b) determine the revenue, to the nearest $1 million, at that time.

you will have $2593.74 in 10 years if you set aside $1,000 at 10%

you will have $9321.91 in 20 years if you set aside $2000 at 8%

you will have $1469.32 in 5 years if you set aside $1000 at 8%

you will have $1296.87 in 10 years if you set aside $500 at 10%

you will have $239.66 in 15 years if you set aside $100 at 6%

you will have $4660.96 in 20 years if you set aside $1000 at 8%

according to the song of roland, the characteristics of an ideal knight are: loyalty to the king, skilled warriors and horseman, valiant, bold, courageous, strong and proud in battle. they should be determined to fulfil their duties and willing to die to make their people safe.