Perform the indicated operations.
A. - 
B. 
C. 
D. - 
Answer: A
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Solve the problem.A laminated lab bench has 1
inches of plywood, 2
inches of pressed board, and 
inches of formica. What is the thickness of the lab bench?
A. 1
in.
B. 
in.
C. 5
in.
D. 
in.
Write an expression involving subtraction and simplify.32 subtracted from -13.
A. -19 B. 19 C. -45 D. 45
Solve the problem.The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Saturn and Neptune appear in the same direction in the night sky as seen from earth?[Hint: Find the LCM of 30 and 165]
A. Every 1650 years B. Every 330 years C. Every 4950 years D. Every 990 years
Which scenario(s) below should be counted using permutations? I. the number of ways the gold, silver, and bronze medal winners can be chosen in an Olympic track-and-field event (assume that there are no ties) II. the number of ways 3 people can be chosen to sit from among 8 people III. the number of ways to choose 5 lottery numbers IV. the number of ways to roll a total of 7 when rolling a pair of dice V. the permutation may not be used in any scenarios
A. ?II only B. ?I only C. ?V only D. ?IV only E. ?III only