Solve the problem.Mara can type 1120 words in 
hour (40 minutes). How many words per minute can she type?
A. 28 words/minute
B. 19 words/minute
C. 42 words/minute
D. 747 words/minute
Answer: A
Mathematics
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Express the given expression in simplest form with only positive exponents.
3
A. 
B. 
C. 27y12
D. 
Mathematics
A and B designate finite sets. Decide whether the statement is true or false.n(A ? B) + n(A ? B) = n(A) + n(B)
A. True B. False
Mathematics
Determine the validity of the argument.Martians are green.Roger is not green.Therefore Roger is not a Martian.
A. Valid B. Not valid
Mathematics
The associative and commutative properties for addition allow for three or more integers to be added in any order. Find the given sum.-14 + 3 + 0 + (-4)
A. 13 B. -15 C. -7 D. -21
Mathematics