Solve the equation.0.03(40) + 0.70x = 0.40(40 + x)
A. x = 60
B. x = 25
C. x = 40
D. x = 50
Answer: D
Mathematics
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Find the equation of the parabola determined by the given information.Vertex at the origin, focus at (-9, 0)
A. x = - 
y2
B. x2 = -36y
C. y2 = -36x
D. y = - 
x2
Mathematics
Solve the problem.A chemical solution contains 1% salt. How much salt is in 2.5 mL of solution?
A. 0.025 mL B. 0.25 mL C. 25 mL D. 250 mL
Mathematics
State the domain of the rational function.g(x) = 
A. (-?, ?) B. (-?, -3) ? (-3, ?) C. (-?, 2) ? (2, ?) D. (-?, 0) ? (0, ?)
Mathematics
Identify the base. Do not evaluate.-(-4)9
A. -9 B. -4 C. 9 D. 4
Mathematics