Use the given information to write an equation. Let x represent the number described in the exercise. Then solve the equation and find the number.If 230 is subtracted from a number, the result is 490.
A. x - 230 = 490; 720
B. x - 230 = 490; -720
C. x + 490 = 230; -260
D. x + 230 = 490; 260
Answer: A
Mathematics
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Simplify the expression using the power rule.(54)9
A. 513 B. 536 C. 254 D. 2536
Mathematics
For the pair of functions, find the quotient function or functional value indicated. Give any x-values that are not in the domain of the quotient function.Find 
(x).f(x) = x2 + 11x + 18g(x) = x + 2
A. 
(x) = x + 9; 2
B. 
(x) = x + 2; -9
C. 
(x) = x + 11; 0
D. 
(x) = x + 9; -2
Mathematics
Solve the inequality.x2 + 6x ? -8
A. -4 ? x ? -2 B. 2 ? x ? 4 C. 2 < x < 4 D. x ? 2 or x ? 4
Mathematics
Solve.Bart borrowed 
to finish college at an interest rate of 
per year. How much interest will Bart need to pay next year?
A. $1800 B. $1080 C. $80 D. $800
Mathematics