Provide an appropriate response.Which property justifies the statement?(5 ? 7) ? 4 = 5 ? (7 ? 4)
A. Commutative property
B. Identity property
C. Associative property
D. Distributive property
Answer: C
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Solve the problem.72 parakeets out of a total of 144 parakeets were treated for an illness. What percent of the parakeets were treated for the illness? Round to the nearest whole percent.
A. 36% B. 1440% C. 14% D. 50%
Solve the problem.A weighted voting system has 100 players. How many sequential coalitions in which P50 is listed first are possible?
A. 
B. 50!
C. 100! - 1
D. 99!
E. none of these
Factor.w7 - 29wa6 + 7w3a7 - 3w7a6
A. wa6(w6 - 29 + 7w2a1 - 3w6) B. wa(w6 - 29a5 + 7w2a6 - 3w6a5) C. w(w6 - 29a6 + 7w2a7 - 3w6a6) D. w2(w6 - 29a5 + 7w2a6 - 3w6a5)
Solve the problem.Suppose that two cars, both traveling at a constant speed of 60 miles per hour, approach each other on a straight highway. Initially they are 16 miles apart. Let x represent minutes. Give an absolute value equation whose solution gives the times when the cars were 10 miles apart. Solve the equation. Interpret the meaning of the result.
A. 
= 10; x = 3 or x = 13; After 3 minutes or after 13 minutes the cars were 10 miles apart.
B. 
= -16; No solution; The cars will never be 10 miles apart.
C. 
= 10; x = 6 or x = 26; After 6 minutes or after 26 minutes the cars were 10 miles apart.
D. 
= 6; x = 3 or x = -3; After 3 minutes or 3 minutes earlier the cars were 10 miles apart.