Set up the percent proportion for the application problem. Do not try to solve for any unknowns.11% of the baby salmon shipped from a hatchery do not arrive healthy. Of 4200 salmon shipped, how many do not arrive healthy?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: C
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Determine the principal value without using a calculator.- 3
A. Not real number B. 4 C. 2 D. -2
Solve.The air temperature T (in degrees Fahrenheit) at an altitude h (in feet) above a particular area can be approximated by the formula 
where G is the temperature on the ground directly below. If the ground temperature is 88°F, at what altitude will the air temperature drop to 40°F?
A. 24,000 ft B. 32,000 ft C. 26,000 ft D. 30,000 ft
Solve.Each day the commuter train transports x passengers to or from the city at $1.75/passenger. The daily fixed cost for running the train is $1200. Write an equation that relates the daily profit, P, in dollars to the number of passengers each day. Then use the equation to find the daily profit when the train has 920 passengers in a day.
A. P = 1.75x; $1610 B. P = 1200 - 1.75x; $410 C. P = 1.75x - 1200; $410 D. P = 1.75x + 1200; $2810
Find the LCD for the rational expression.
, 
A. (x - 2)(x - 6) B. (x - 3)(x - 2) C. (x + 3)(x + 2)(x - 6) D. (x - 3)(x - 2)(x - 6)