Round the number to three significant digits.248.561
Fill in the blank(s) with the appropriate word(s).
249
Mathematics
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Write or illustrate the number in the indicated form.203; Express in expanded form.
A. 2 ? 101 + 0 ? 102 + 3 ? 103 B. 2 ? 100 + 0 ? 101 + 3 ? 102 C. 2 ? 103 + 0 ? 102 + 3 ? 101 D. 2 ? 102 + 0 ? 101 + 3 ? 100
Mathematics
Solve the problem. Express any improper fraction as a whole or mixed number.Martha can rake the leaves in her yard in 6 hours. Her brother can do the job in 7 hours. How long will it take them to do the job working together?
A. 
hr
B. 3
hr
C. 42 hr
D. 
hr
Mathematics
Simplify the expression.
A. 
B. 
C. 12a4b11c6
D. 12a2b9c4
Mathematics
Add or subtract.
- 
A. 
B. 
C. 
D. 
Mathematics