Solve the problem.Your friends Joe and Tanya are having a debate. Joe says that -21 is bigger than -18 and uses money as an analogy: "If I owe $21, I have a larger debt than if I owe $18." Tanya responds and argues that -18 is larger than -21 because the bigger the debt, the less money the person has. They ask you to settle their debate. Which number is larger, -21 or -18?
A. -18
B. -21
Answer: A
Mathematics
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Solve the problem.Suppose that an honest coin is tossed ten times. What is the probability that it will come up heads at least once?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. a + 2
- b
B. a + b
C. a - b
D. a - 2
+ b
Mathematics
Solve the inequality.x2 - 7x + 10 ? 0
A. x ? 2 or x ? 5 B. 2 ? x ? 5 C. x ? 5 D. x ? 2
Mathematics
Use the Distributive Property to find the product.-4z(6z2 - 2z - 6)
A. -24z2 + 8z + 24 B. -24z3 + 8z2 + 24z C. -24z3 + 8z2 + 24 D. -24z3 - 2z - 6
Mathematics