Calculate using proper order of operations.23.1 - 5.9 ÷ 9.6 × 22.2
A. 0.08
B. 39.78
C. 499.18
D. 9.46
Answer: D
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Evaluate as specified.For f(x) = 32x, find f 
.
A. 256 B. 64 C. 128 D. 14
In a school survey, students showed these preferences for instructional materials. Answer the question.
How many degrees are in the central angle for the "radio" sector?
A. 5° B. 9° C. 180° D. 18°
Solve the problem.A certain electronic air cleaner is capable of filtering x liters of air per second and the percentage of the contaminants that are removed from the air may be calculated by 
where 
Graph f in [0,85,5] by 
Then, use the intersection-of-graphs method to estimate the x-values where 75% to 95% of the pollutants are removed.
height="180" width="180" />
A. 75% to 95% are removed when
about 36 to 47 liters of air are
filtered.
B. 75% to 95% are removed when
about 25 to 33 liters of air are
filtered.
C. 75% to 95% are removed when
about 45 to 56 liters of air are
filtered.
D. 75% to 95% are removed when
about 27 to 36 liters of air are
filtered.
Determine whether the statement is true or false.-23 ? -11
A. True B. False