Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True
B. False
Answer: B
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Solve the problem.Which is the best deal?Special 1: Six small grapefruits for a dollar.Special 2: Four medium size grapefruits for a dollarSpecial 3: Three large grapefruits for a dollarAssume that all the grapefruits are spherical, that the small grapefruits have a diameter of 3 inches, the medium grapefruits have a diameter of 3.5 inches, and the large grapefruits have a diameter of 4 inches.
A. Special 3 B. Special 1 and Special 3 C. Special 1 D. Special 2
Evaluate. Assume that all variables represent positive numbers. - 
A. 36
B. -36
C. - 
D. 
Add or subtract as indicated. Simplify the result, if possible.
- 
A. - 
B. - 
C. 
D. 
Find the average rate of change illustrated in the graph.
Time (in hours)
A. 2.5 miles per hour B. 25 miles per hour C. 5 miles per hour D. 0.2 miles per hour