Solve.Let f(x) = ln(x - 5) + 15.. Solve f(x) = 15.
A. {20}
B. {10}
C. {-4}
D. {6}
Answer: D
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Perform the operation and reduce to lowest terms.
× 
× 
A. 
B. 
C. 
D. 
Solve the problem by estimating.As part of her preparation for soccer tryouts, Francine did 73 jumping jacks each day for 68 days. Estimate how many jumping jacks she did during that period. Round the number of jumping jacks and the number of days to the to the nearest ten.
A. 13,000 B. 4900 C. 1300 D. 49,000
Solve the problem.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The total income from the 5% and 6% investments is equal to the income from the 8% investment. Find the amount invested at each rate.
A. $5000 at 5%, $10,000 at 6%, $10,000 at 8% B. $10,000 at 5%, $10,000 at 6%, $5000 at 8% C. $10,000 at 5%, $5000 at 6%, $10,000 at 8% D. $8000 at 5%, $10,000 at 6%, $7000 at 8%
The following double-bar graph illustrates the revenue for a company for the four quarters of the year for two different years. Use the graph to answer the question. 
In what quarter was the revenue the greatest for 2009?
A. first quarter B. second quarter C. fourth quarter D. third quarter