Simplify.102 - 4 ? 7
A. 72
B. 252
C. 420
D. 672
Answer: A
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Solve the problem. Where appropriate, round to the nearest tenth of a percent.The graph below shows the number of internet host sites for five consecutive years. Find the percent increase in host sites from 2008 to 2009. Round to the nearest percent.
20082009201020112012Year
A. 0.8200% B. 1.0200% C. 102% D. 82%
Provide an appropriate response.A student says that the equation 
can be solved as follows: y - 4 = 1 or y + 5 = 5. If this is correct, explain why. If it is not correct, explain why and give the correct method.
What will be an ideal response?
Solve the problem.
-55
A. A(x) = 2x(5 - x) B. A(x) = 2x(x - 5) C. A(x) = 2x2 D. A(x) = x(5 - x)
Find the domain and range of the relation.{(10, 1), (-9, 1), (-3, 1)}
A. Domain = {-9, 1, 10}; range = {-3} B. Domain = {-9, -3}; range = {1, 10} C. Domain = {-9, -3, 10}; range = {1} D. Domain = {1}; range = {-9, -3, 10}