Use the substitution method to solve the system.
x + 
y = -17
x + 3y = -28
A. (-20, -23)
B. (-16, -15)
C. (-16, -20)
D. (-20, -6)
Answer: D
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Solve the application using the percent equation. Answer with a complete sentence.In a clinical study, 15 of the 300 subjects receiving a migraine medication developed side effects. What percentage developed side effects?
A. 5% developed side effects. B. 15% developed side effects. C. 4% developed side effects. D. 7% developed side effects.
Use the change of base formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log4.4 131
A. 29.77 B. 2.12 C. 3.29 D. 0.30
Following the order of operations, evaluate by working from left to right.-36 ÷ (-9) ? (-7) ÷ (-7) ÷ (-2)
A. -162 B. 2 C. -8 D. -2
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = (-7x + 3)9
A. f(x) = -7x9, g(x) = x + 3 B. f(x) = x9, g(x) = -7x + 3 C. f(x) = (-7x)9, g(x) = 3 D. f(x) = -7x + 3, g(x) = x9