Solve.The price of a printer was reduced from $400 to $300. What was the percent of decrease?
A. 75%
B. 25%
C. 33.3%
D. 30%
Answer: B
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Use Identities to find the exact value.cos 
cos 
+ sin 
sin 
A. 
B. 
C. 
D. - 1
Solve the problem.Alex always takes $10 more than he anticipates needing on a date. Tonight Alex takes $30 on his date with Judith. Use the equation 
to find the amount of money, x, Alex anticipates needing for this date.
A. $40 B. $30 C. $10 D. $20
Solve.-2b = 28
A. 30 B. -14 C. -30 D. 1
Solve the problem.An express train travels 463 miles between two cities. During the first 
of a trip, the train traveled through mountainous terrain. The train traveled 
per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 9 hours, find the speed of the train on level terrain.
A. 71 mph B. 39 mph C. 23 mph D. 55 mph