Write the number in scientific notation.27,000,000
A. 2.7 × 10-6
B. 2.7 × 107
C. 2.7 × 10-7
D. 2.7 × 106
Answer: B
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Simplify the algebraic expression.-3(8y + 5) - 5
A. -24y - 30 B. 24y + 10 C. -24y D. -24y - 20
For the functions f(x) and g(x), determine the domain of (f - g)(x) (the difference of f and g).f(x) = 3x + 
, g(x) = 1 - x2
A. {x ? x is a real number and x ? 1} B. {x ? x is a real number} C. {x ? x is a real number and x ? -6} D. {x ? x is a real number and x ? 6}
Consider the sets X and Y. Write the statement in symbols.
?
The complement of the union of X and Y.
?
Enter 
to represent 
.
What will be an ideal response?
Solve the problem.The function 
models the amount, f(x), in billions of dollars of new student loans x years after 1993. According to the model, in what year is the amount loaned expected to reach $25.5 billion?
A. 2000 B. 2002 C. 1997 D. 2001