Find the exact value of the following expression without using a calculator.sec 240°
A. - 
B. 
C. -2
D. 2
Answer: C
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Solve the problem.Two tracking stations are on the equator 120 miles apart. A weather balloon is located on a bearing of 
from the western station and on a bearing of N19°W from the eastern station. How far is the balloon from the western station? Round to the nearest mile.
A. 138 miles B. 99 miles C. 129 miles D. 90 miles
Starting with the graph of  Figure 2.png)
, find the equation of the graph that results from reflecting about the line y = 1. Select the correct answer.
 multiple choice.png)
Write rational exponents in radical notation and radicals in rational exponential notation.
A. 33
B. 53
C. 25
D. 
Solve the problem.Some people must eat a low-sodium diet with no more than 2,000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cookie, a person would ingest 149 mg of sodium. If a person ate 8 pretzels and 8 cookies, he or she would ingest 936 mg of sodium. By eating 6 crackers and 7 pretzels, the person would take in 535 mg of sodium. Find the amount of sodium in each.Which of the following is true?
A. A pretzel has 49 mg of sodium. B. A cookie has 71 mg of sodium. C. A cracker has 30 mg of sodium. D. None of these