Solve the problem.Gary can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 38 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 7
mph
B. 8 mph
C. 5
mph
D. 4
mph
Answer: A
Mathematics
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Graph the function.Temperature in degrees Celsius C is given by C = 
(F - 32), where F is degrees Fahrenheit. Plot C as a function of F.
A. 
B. 
C. 
D. 
Mathematics
Multiply.6
A. - 
B. - 42
C. 
D. 
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Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. 0
B. 1
C. -1
D. 
Mathematics
Solve the problem.A salesman packed 3 shirts and 5 ties. With one shirt, he could wear all 5 ties. With another shirt, he could wear 4 ties. With the other shirt, he could wear only 3 ties. How many different combinations did he have?
A. 60 B. 12 C. 23 D. 11
Mathematics