What is the surface area of a spherical planet with diameter 2,000 miles?
?
A. ?400,000? square miles
B. ?4,000,000? square miles
C. 4,000?? mi2
D. ?4,000,000 square miles
E. ?4,000,000? square miles
Answer: B
Mathematics
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Multiply.(5
+ 2)(8
+ 5)
A. 10 + 40
+ 25
B. 50
+ 25
C. 75
D. 90 + 41
Mathematics
Solve the problem.The number of books, B, in a small library after t years is given by the function 
where t is measured in years. How many books will the library have after 6 years? (Round to the nearest unit.)
A. 5089 B. 2210 C. 2706 D. 3164
Mathematics
Write the fraction in simplest form.- 
A. - 
B. - 
C. - 
D. - 
Mathematics
Use the addition property of equality to solve the equation.2 + 9y = 10y
A. -2 B. 9 C. -17 D. 2
Mathematics