For each international call made to Country B last month, a certain telephone company charged a customer $075 to connect the cal plus a certain per-minute rate applied to each minute or part of a minute of the duration of the call. If the telephone company ' s total charge for the customer ' s calls to Country B last month was $84.00, what was the per-minute rate, in dollars?

(1) The telephone company connected 12 calls for the customer to Country B last month.

(2) If the telephone company had no connection fee last month but had charged a per-minute rate that was 20 percent greater than the rate the customer was actually charged, then the total charge for the customer ' s calls to Country B last month would have been $90.00.

In the xy-plane, the point (0,3) is the vertex of a certain right angle. If the sides of the right angle intersect the x-axis at the points (-4,0) and (b,0), what is the value of b?

The chart above shows political and geographic data on a certain legislative committee of 20 members, each of whom belongs to 1 of 2 political parties and lives in 1 of 4 regions. How many subcommittees of this legislative committee are possible that contain exactly 1 member from each of the 4 regions and the same number of members from each of the 2 political parties?

(1) x= y

(2) x < 1

Last year the amounts of electricity an electric company supplied to 4,117 residential properties and 2,504 commercial properties were recorded to the nearest thousand kilowatt-hours and summarized in the graph shown. The median of the amounts of electricity recorded is In which of the following categories?

What is the value of the integer t?

(1)

Each of the integers 2, 5, and 7 is a factor of t.

(2)

63 < t < 135

What amount. In dollars, Invested for one year at an interest rate of 2 percent compounded semiannually would produce the same final balance at the end of the year as $10,000 Invested for one year at an interest rate of 4 percent compounded quarterly?