Write the whole number in expanded form.90,380
A. 9000 + 300 + 8
B. 90,000 + 3000 + 80
C. 90,000 + 300 + 80
D. 9000 + 30 + 8
Answer: C
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Use the graph to estimate the specified limit.Find 
f(x)
A. does not exist B. 1 C. -1 D. 0
Solve the problem.Let y(t) be the population of a species of plant that is being harvested, for t ? 0. Consider the harvesting model 
where h is the annual harvesting rate, y0 is the initial population of the species, and t is measured in years. If y0 = 2000, what harvesting rate should be used to maintain a constant population of y = 2000, for t ? 0?
A. h = 4 yr-1 B. h = 10 yr-1 C. h = 100 yr-1 D. h = 2000 yr-1
Provide an appropriate response.Express in scientific notation: 7,215
A. 0.7215 × 104 B. 7.215 × 103 C. 7.215 × 104 D. 72.15 × 102
Use a calculator to find an approximation for the power. Round the answer to seven decimal places if necessary.
A. 823,543 B. 10,267.1079 C. 1452.33674 D. 139.38281