Simplify using order of operations.3 ? (2 + 2)2 - 4 ? (6 - 3)2
A. 28
B. 0
C. 12
D. 396
Answer: C
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Solve the rational inequality. Express the solution in interval notation.
< 8
A. 
? (4, ?)
B. (-?, -4) ? 
C. 
D. (-?, -4) ? (4, ?)
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.6
(
+ 
)
A. 6
+ 3
B. 18
+ 18
C. 6
+ 3
D. 6
+ 18
Multiply by using the rule for the square of a binomial.
2
A. 121x2 + x + 
B. 121x2 + 
C. 121x2 + 
x + 
D. 121x2 + 2x + 
Solve the problem.Mieko, who is 1.81 m tall, wishes to find the height of a tree. She walks 18.96 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is now 5.18 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 6.63 m B. 0.49 m C. 8.44 m D. 2.49 m