Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: D
Mathematics
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Convert. When necessary, round the answer to two decimal places.5.5 gallons = quarts
A. 44 B. 10 C. 20 D. 22
Mathematics
Solve the problem.How many ways are there to choose 3 books from a collection of 12 different books?
A. 1320 B. 1980 C. 220 D. 22
Mathematics
Divide and/or multiply as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
÷ 
A. 
B. x + 7
C. 
D. 
Mathematics
Solve the problem.21.44 is what percent of 32?
A. 0.67% B. 670% C. 6.7% D. 67%
Mathematics