Solve the problem.The minute hand of a clock is 5 inches long. How far does the tip of the minute hand move in 30 minutes? If necessary, round the answer to two decimal places.
A. 18.22 in.
B. 16.94 in.
C. 15.71 in.
D. 13.97 in.
Answer: C
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Solve the problem.The diameter of a tree was 8 in. During the following year, the circumference increased 
About how much did the tree's diameter increase? (Leave your answer in terms of ?.)
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Solve the problem.The length a spring is stretched from its natural length with work, W
is given by L = 
where k is a constant for the given spring. If a certain spring has a constant of 61.8, and the spring is to be stretched 1.9 feet from its natural length, how much work will be necessary? Round your answer to the nearest tenth.
A. 223.1 foot-pounds B. 58.7 foot-pounds C. 111.5 foot-pounds D. 42.6 foot-pounds
Solve the equation.
= 
+ 3
A. 90 B. -90 C. -45 D. 45
Find the least common multiple (LCM) of the pair of numbers.19 and 2
A. 2 B. 21 C. 19 D. 38