A certain commodity has demand curve p = 
- 1 at sales level x. What is the consumers' surplus if 5 units are currently being sold?
A. 20(ln 15 + ln 5) - 10
B. 20(ln 10) - 10
C. 
(ln 3) - 20
D. 20(ln 15 - ln 5) - 10
E. none of these
Answer: E
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Solve.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
(t = time in weeks with t=1 referring to the first week in the year). During which week(s) will the sales equal 70,950 items?
A. week 30 and week 47 B. week 21 and week 30 C. week 4 and week 47 D. week 4, week 20, and week 52
Solve the problem.A chemist needs 190 milliliters of a 66% solution but has only 42% and 99% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 110 mL of 42%; 80 mL of 99% B. 70 mL of 42%; 120 mL of 99% C. 80 mL of 42%; 110 mL of 99% D. 120 mL of 42%; 70 mL of 99%
Multiply by powers of 10.0.8549 × 100
A. 0.854900 B. 85.49 C. 8.549 D. 854.9
Refer to the graph of the function f(x). Provide an appropriate response.Find f(-3).
A. 3 B. -5 C. -3 D. Undefined