Solve the system of equations by either the addition method or the substitution method.
A. no solution
B. (-7, -4)
C. (7, -5)
D. (6, -4)
Answer: C
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Find the value.If F(x, y) = ln (x2 + y2), find Fx(1, 3) and Fy(1, 3).
A. Fx(1, 3) = 
, Fy(1, 3) = 
B. Fx(1, 3) = 
, Fy(1, 3) = 
C. Fx(1, 3) = 
, Fy(1, 3) = 
D. Fx(1, 3) = 
, Fy(1, 3) = 
Solve the problem.The water reservoir for a city is shaped like a rectangular prism 238 meters long, 188 meters wide, and 18 meters deep at the end of the day, the reservoir is 60% full. How much water must be added overnight to fill the reservoir?
A. 442,966 m3 B. 1,248,358 m3 C. 1,127,549 m3 D. 322,157 m3
Without plotting points, match the function defined by the absolute value expression with its graph.f(x) = 
+ 3
A. 
B. 
C. 
D. 
Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $141 Commission: $2.82
A. 3% B. 2% C. 4% D. 0.2%