Simplify the expression. Write the answer using positive exponents.(k6)-7(km)6
A. -k48m6
B. 
C. -k36m6
D. 
Answer: B
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Perform the indicated operations.
+ 
A. 
B. 
C. 
D. 
Find a formula for the inverse of the function described below.A size 12 dress in Country C is size 64 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
- 20
B. f-1(x) = x - 20
C. f-1(x) = 
+ 20
D. f-1(x) = 
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The gross domestic product (GDP) is the total national output of goods and services valued at market prices within the United States. In a certain year, the GDP of the United States was$6,660,000,000 and the population was 2,398,000. On average, how many dollars of goods and services were produced by each individual during that year?
A. $2.78 × 103 B. $27.80 C. $2.78 × 106 D. $2.78
Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 15 miles. Round to the nearest hundredth.
A. 0.27 hr B. 4.07 hr C. 1.08 hr D. 58.09 hr