Translate to a proportion and solve. What percent of 50 is 18?
A. 18%
B. 160%
C. 36%
D. 80%
Answer: C
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Determine convergence or divergence of the series.
A. Converges B. Diverges
If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (3 ln(8t))i + (2t3)j
A. a = - 
i + 12tj
B. a = 
t-2i + 12tj
C. a = 
i + 6tj
D. a = - 
t-2i + 12tj
Solve the problem.Kate decides to replace all the lights in her college apartment with energy saving light bulbs beginning this month. The packaging says the new bulbs will use 75% less electricity. If Kate's electric bill last month was $7.29 from bulb use alone, project how much Kate's electric bill will be this month for bulb use.
A. $6.54 B. $2.55 C. $5.47 D. $0.80 E. $1.82
Find the best buy and give the unit price.Brand X 8 oz for $2.88Brand Y 12 oz for $4.56
A. Brand Y, $0.38 B. Equal value C. Brand X, $0.36 D. Brand Y, $0.36