Solve the problem with estimation, but do not use a calculator. Use rounding to make the resulting calculations simple.Estimate the number of seconds in a day.
A. 600,000 seconds
B. 72,000 seconds
C. 3,600 seconds
D. 1,400 seconds
Answer: B
Mathematics
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Collect like terms.23x + 14 - 7x - 6
A. 16x + 14 - 6 B. 16x + 8 C. 30x + 20 D. -16x + 8
Mathematics
Solve the problem.In September 1998 the population of the country of West Goma in millions was modeled by 
At the same time the population of East Goma in millions was modeled by
In both formulas x is the year, where 
corresponds to September 1998. Assuming these trends continue, estimate the year when the population of West Goma will equal the population of East Goma.
A. 2008 B. 1988 C. 10 D. 2007
Mathematics
Solve the problem.Find the sum of all the integers from 33 to 71.
A. 1924 B. 1995 C. 1957 D. 2028
Mathematics
Evaluate.
, for m = 24 and n = 18
A. - 10 B. 18 C. - 144 D. 2
Mathematics