Find the selling price per item to the nearest cent.Total cost: $328.09Quantity: 60Unsaleable: 5%% Markup on selling price: 21%
A. $7.29
B. $6.92
C. $4.76
D. $13.84
Answer: A
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On a certain island there are initially 4.6 new species per year introduced. This number decreases by 4% each year. But conditions cause some species to become extinct. Initially 1.7 species per year become extinct. The number increases by 14% each year. ? A: Using N for new species per year, find a formula that gives the number of new species per year introduced after t years. ? B: Using E for extinction rate, find a formula that gives the rate of extinction t years. ? C: Make a graph that shows both N and E over the first 10 years. ? D: When will the rate of extinction be the same as the rate new species are being introduced? Round your answer to two decimal places if necessary.
What will be an ideal response?
Solve the given inequality (a related function is graphed).
< 0 
A. [2, 6] B. (-?, 2) ? (6, ?) C. (-?, 2] ? [6, ?) D. (-?, 0) ? (2, 6)
Assume that a survey of 275 people is taken to determine the opinions of doctors, teachers, and lawyers on a proposed piece of legislation, with the results as shown below. A person is chosen at random from those surveyed. Refer to the table to find the probability the person favors the legislation. Number that favorNumber that opposeNumber with no opinionTotalDoctors713418123Teachers762310109Lawyers2014943Total1677137275
A. 
B. 
C. 
D. 
E. 
Simplify the expression. Assume that all variables represent nonnegative real numbers.
- 3
- 5
A. -8x
B. -47x
C. -47x
D. -8x