Decide whether or not the ordered pair is a solution of the system.(-3, 6)x + y = 9x - y = -3
A. Yes
B. No
Answer: B
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Write the following statement as a mathematical expression. ? Three is less than thirty-two. ?
A.
B.
C.
D.
E.
Solve the problem.A stone is thrown into a pond. A circular ripple is spreading over the pond in such a way that the radius is increasing at the rate of 2.6 feet per second. Find a function, r(t), for the radius in terms of t. Find a function, A(r), for the area of the ripple in terms of r. 
A. (A ? r)(t) = 6.76?2t B. (A ? r)(t) = 2.6?t2 C. (A ? r)(t) = 5.2?t2 D. (A ? r)(t) = 6.76?t2
Graph each function. Use the graph to determine the domain and range.f(x) = x3 + 7
A. Domain: [0, ?) Range: (-?, ?) B. Domain: [-7, ?) Range: (-?, 7] C. Domain: (-?, ?) Range: (-?, 0] D. Domain: (-?, ?) Range: (-?, ?)
Simplify the fraction. (Write the fraction in lowest terms.) If the fraction cannot be simplified, so state.
A. 
B. 20
C. cannot be simplified
D. 