Solve the equation.3(6 - 3x) = 
A. 
B. {9}
C. {-3}
D. {3}
Answer: D
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Add or subtract. Simplify if possible.
- 
A. 
B. 
C. 
D. 
Solve the problem.If s varies directly as t2, and 
when 
find s when t is 9.
A. s = 54 B. s = 36 C. s = 486 D. s = 324
Express the statement as an equation involving the indicated variables.The surface area S of a cube is 6 times the square of the length x of a side.
A. S = 6x B. S = 6 + x2 C. S = x2 D. S = 6x2
Solve the problem using your calculator.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Use linear regression to find a linear function that predicts a student's score on Test B as a function of his or her score on Test A.
A. y = -0.930 + 19.4x B. y = 0.930 - 19.4x C. y = 19.4 + 0.930x D. y = -19.4 - 0.930x