Find the LCM of 8 and 4.
?
A. 8
B. 128
C. 16
D. 32
Answer: A
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Solve the problem.Calculate 
, where R ={(x, y): 0 ? x ? 1, 0 ? y ? 1}. (Hint: This integral represents the volume of a certain solid. Calculuate its volume from elementary principles.)
A. 7.5 B. 6.5 C. 7 D. 14
Compare the decimal numbers, and insert <, >, or = to form a true statement.0.69 
0.64
A. < B. > C. =
Solve the problem.A machine in a factory produces 540 units each hour. How many units does the machine produce per minute?
A. 216 units B. 22 units C. 4 units D. 9 units
Use a proportion to solve the application.Five out of 10 adults in a certain city reported they receive more email than they can read. If this city has 53,000 adults, how many reported that they receive more email than they can read?
A. 10,600 adults B. 26,500 adults C. 2650 adults D. 1060 adults