Use scientific notation to solve the problem.The national debt of a small country is $7,420,000,000 and the population is 2,550,000. What is the amount of debt per person?
A. $2.91 x 106
B. $29.10
C. $2.91 x 103
D. $2.91
Answer: C
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List all the factors of each number.231
A. 7 ? 7 ? 3 B. 3 ? 3 ? 11 C. 3 ? 7 ? 11 D. 21 ? 11
Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule all three tours in one day, with the museum tour being after noon?
A. 40 B. 30 C. 60 D. 20
Find the numerical value of the expression for 
and 
A. a) 3 b) 1
B. a) 1 b) 
C. a) 1 b) 3
D. a) 
b) 
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a8 when a1 = 7,000,000, r = 0.1.
A. 0.007 B. 0.07 C. 0.7 D. 7