Solve the problem.There are currently 60 million cars in a certain country, decreasing by 4.3% annually. How many years will it take for this country to have 31 million cars? (Round to the nearest year.)
A. 2 years
B. 16 year(s)
C. 7 year(s)
D. 78 years
Answer: B
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Use a proportion to solve the problem.A recent advertisement claimed that 2 out of every 5 doctors recommend a certain herbal supplement to increase energy levels. If a local hospital employs 140 doctors, how many doctors would you expect to recommend the supplement? (Round to the nearest whole number, if necessary.)
A. 350 doctors B. 28 doctors C. 56 doctors D. 1400 doctors
State the degree of the polynomial equation.(x + 3)2(x - 1) = 0
A. 2 B. 3 C. 1 D. 4
Find the indicated probability.Each digit from the number 5,939,669 is written on a different card. If one of these cards is selected at random, what is the probability of drawing a card that shows 5 or 6?
A. 
B. 
C. 
D. 
Rationalize the denominator. Assume variables represent non-negative values. 
A. 
B. 
C. 
D. 
