Use algebraic and/or graphical methods to solve the inequality.
> 
A. x < -7
B. All real numbers
C. No solution
D. x > -7
Answer: D
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
If R is the set of real numbers, Q is the set of rational numbers, I is the set of integers, N is the set of natural numbers, and S is the set of irrational numbers, list the set(s) for which a solution to the given equation exists. If a solution to the given equation does not belong to any set, state none.x2 + 1 = 26
A. N, Q, R B. I, Q, R C. N, I, R D. N, I, Q, R
Solve the problem.A cashier has a total of 127 bills made up of fives and tens. The total value of the money is $825. How many ten-dollar bills does the cashier have?
A. 38 ten-dollar bills B. 19 ten-dollar bills C. 89 ten-dollar bills D. 57 ten-dollar bills
Solve the equation.x2 + 3x - 18 = 0
A. {6, 3} B. {6, -3} C. {-6, 3} D. {-6, 1}