Subtract and simplify. Write the answer as a mixed number as needed.9
lb - 1 lb
A. 9
lb
B. 
lb
C. 8
lb
D. 89
lb
Answer: C
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The time required for a car to travel a certain distance varies inversely as the rate at which it travels. If it takes 10 hours at 60 miles per hour to travel the distance, how long will it take at 100 miles per hour?
A. t = 6 hours B. t = 10 hours C. t = 5 hours D. t = 9 hours E. t = 4 hours
Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities.
A. y ? 2 B. y ? 2 C. x ? 2 D. x ? 2
Simplify the expression by using the order of operations.8 ? 
? 
÷ 4 + 6 - 3 + 1
A. 47 B. 44 C. 43 D. 48
Simplify the trigonometric expression by following the indicated direction.Rewrite over a common denominator: 
+ 
What will be an ideal response?