1. A plane is flying at a height of 2000 m and then starts to
descend at a rate of 100 meters per minute.
a) What is the planes height after 6 minutes?
b) If the plane continues to descend at that rate until it lands,
how long will it take to land?
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2. Assume a lake gets 0.5 0 C for every 5 m you dive down
a) If West Hawk lake is 160 C at the surface and you dive down
17.5 m, how cold is the lake where you are?
b) If you are at Falcon lake diving and it is 150C where you are at a
depth of 22.5 m, what is the temperature at the surface?
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3. You have 200 shares in a stock and the price one day is $1.25
per share, the next day it goes up to $1.40 per share. What is
the change in value of your shares of stock?
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4. pg. 60 question 19
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