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At a certain company, 60 percent of the employees were in department $$A$$ and the remaining 40 percent were in department $$B$$. During a company reorganization, some of the employees were moved from department $$A$$ to department $$B$$, none were moved from department $$B$$ to department $$A$$, and the total number of employees remained the same. If the number of employees in department $$A$$ decreased by 30 percent as a result of the reorganization, what was the percent increase in the number of employees in department $$B$$?
The cost of producing 1 unit of a product at a certain manufacturing company is $0.75. According to a sales model, if each unit has a selling price of $1.00, the company expects to sell 1,000 units each month. For each $0.05 increase in the unit selling price, the company expects to see a decrease of 100 units sold each month. According to the model, which of the following could be a unit selling price at which the company would expect a profit of at least $250.00 each month? (Profit equals revenue minus cost.)

Indicate all such unit selling prices.
In a poll, 600 people answered either “acceptable" or “not acceptable" to each of two questions; 514 answered "acceptable" to the first question, and 388 answered "acceptable" to the second question.

Quantity A

The number of polled people who answered "acceptable" to the first question and answered "not acceptable" to the second question

Quantity B

213


$$3^{-1}$$+$$3^{-2}$$+$$3^{-3}$$=
A child-care center has a supply of bicycles, each with 2 wheels, and tricycles, each with 3 wheels, for the children to use. The number of bicycles in the supply is odd, and the total number of wheels on all the bicycles and tricycles is 31. Which of the following could be the total number of bicycles and tricycles in the supply?

Indicate all such numbers.
Ray has applied for acceptance to two different colleges. If the probability is 0.20 that he will not be accepted to either college, what is the probability that he will be accepted to at least one of them?
If $$x$$ is the product of all the different prime factors of 60, then $$x=$$?
Approximately what percent of the total enrollment in 1993 were part-time students?
Based on the information given, which of the following statements must be true?

Indicate all such statements.
Approximately what percent of the total enrollment in 1993 were women in 4-year colleges, given that 40 percent of all enrolled women were in 2-year colleges?
If Transit Company T will run $$60$$ trains per day, then the projected annual revenue is approximately what percent greater than the projected annual cost?
If Transit Company T will run $$40$$ trains per day for a year. approximately what is the projected average revenue per day?
Transit Company T's projected annual cost consists of staffing costs, fuel costs, and equipment costs in the ratio of 1 to 2 to 5. If the company will run $$50$$ trains per day, approximately what is the projected annual cost for fuel?
How many of the companies planning to make an acquisition gave the reason that was given by the least number of such companies?
How many of the five reasons given were given by more than 800 of the companies planning to make an acquisition?
The number of companies that have no plan to make an acquisition is approximately what percent greater than the number of companies that plan to make an acquisition within 1 year?

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