If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.0.5x - 0.3y = -0.9-0.9x + 0.1y = 2.5
A. (-3, -2)
B. (-2, -3)
C. (-4, -1)
D. (-3, -1)
Answer: A
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Solve the problem.If 
is a convergent series of nonnegative terms, what can be said about 
, where k is a positive integer?
A. Always diverges B. May converge or diverge C. Always converges
Solve the application using the percent equation. Answer with a complete sentence.Alex and Juana went on a 45-mile canoe trip with their class. On the first day they traveled 27 miles. What percent of the total distance did they canoe?
A. They canoed 0.6% of the total distance. B. They canoed 200% of the total distance. C. They canoed 2% of the total distance. D. They canoed 60% of the total distance.
Solve the equation.
+ 
= 
A. 
B. - 
C. 
D. No solutions
Let 
, 
.
?
Perform the operation: 
.
?
A. 0?
B. 
?
C. 
?
D. 
?
E. not possible?