Simplify.22 + 12 ? 23
A. 57
B. 782
C. 298
D. 287
Answer: C
Mathematics
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Provide an appropriate response.A secretary had four copy jobs to do for the office. She had exactly one ream (500 sheets per ream) of paper. She rounded to the nearest ten and decided she would be able to finish all four jobs. If the first job needs 122 sheets, the second job uses 247, the third job uses 55, and the fourth job needs 80 sheets, did she finish them all?
A. yes; estimation is 504 B. no; estimation is 510 C. no; estimation is 520 D. yes; estimation is 490
Mathematics
Multiply.(3 - 8r)(3 + 8r)
A. 9 - 48r - 64r2 B. 9 - 64r2 C. 9 - 8r2 D. 9 + 48r - 64r2
Mathematics
Divide, when possible.8 ÷ 0
A. 8 B. Undefined C. 1 D. 0
Mathematics
Divide as indicated. Write the quotient in standard form.
A. - 
+ 
i
B. - 
+ 
i
C. 
+ 
i
D. 
+ 
i
Mathematics