Multiply.-5(-7)(-7)
A. -245
B. 70
C. -235
D. 245
Answer: A
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Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: all real numbers B. Domain: all real numbers; range: [0, ?) C. Domain: [4.9, ?); range: [0, ?) D. Domain: all real numbers; range: [4.9, ?)
Find the indicated derivative.
if y = 5x3
A. 15x B. 15x3 C. 3x2 D. 15x2
Which combinatorial reasoning error did Batanero et al (1997) find to be the most prevalent among the choices listed below?
a. Changing the problem from one type to another and misinterpreting the meanings of words in a problem b. Thinking that order matters in cases where it does not (and vice versa) c. Thinking that identical objects are distinguishable (or vice versa) d. Using unsystematic strategies for listing the possible combinations for a situation.
Divide.- 
÷ 3
A. -4
B. - 
C. 
D. - 