Solve the equation. 0.8x - 0.3(20 + x) = 0.45(20)
A. {15}
B. {40}
C. {20}
D. {30}
Answer: D
Mathematics
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Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = 
A. 
B. 
C. 
D. 
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Solve the problem.Two sailboats leave a harbor in the Bahamas at the same time. The first sails at 23 mph in a direction 350°. The second sails at 33 mph in a direction 190°. Assuming that both boats maintain speed and heading, after 4 hours, how far apart are the boats?
A. 220.7 mi B. 137.4 mi C. 171.2 mi D. 156.3 mi
Mathematics
Solve the number problem by finding the value of the unknown number.When twice a number is subtracted from 26, the result is 14.
A. 5 B. 13 C. 6 D. 9
Mathematics
Solve the equation.t - 9 = 11
A. 20 B. -2 C. -20 D. 2
Mathematics