19:

A long year-end status report for work is 104 pages long. You need to print 13 copies for a meeting next week. How much is the paper going to cost for those reports? Paper is sold in reams of 500 pages for $3.37 each.

$______________

Give your answer to the nearest cent, only for the paper you use (partial reams are OK)

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21:

Starting in the year 2012, the number of speeding tickets issued each year in Middletown is predicted to grow according to an exponential growth model. During the year 2012, Middletown issued 220 speeding tickets (P0=220)

Every year thereafter, the number of speeding tickets issued is predicted to grow by 5%.

If Pn denotes the predicted number of speeding tickets during the year 2012 + n, then

Write the recursive formula for Pn

Pn= ____ x (multiplied by) Pn-1

Write the explicit formula for Pn

Pn= ___________

If this trend continues, how many speeding tickets are predicted to be issued in 2030?

______tickets