Solve the system of equations by substitution.
A. (7, 0)
B. (0, -7)
C. (1, -8)
D. no solution
Answer: B
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Perform the indicated operation.3 - 12
A. -9 B. 9 C. 15 D. -15
Are the sets equivalent?A = {31, 33, 35, 37, 39}B = {32, 34, 36, 38, 40}
A. Yes B. No
Write the whole number in words.64,568,009
A. sixty million, forty-five thousand, sixty-eight hundred and nine B. sixty-four million, five hundred sixty-eight thousand, nine C. sixty-four million, five hundred thousand, sixty-eight hundred, nine D. sixty-million, five thousand sixty-eight hundred, nine
Determine the continuity of the function at the given points.f(x) = 
at x = 1 and x = 4
A. The function f is continuous at 
but not at 
B. The function f is continuous at 
but not at 
C. The function f is continuous at both 
and 
D. The function f is continuous at neither 
nor 