Solve the system by substitution.7x - 6y = -35-4x - 3y = 20
A. {(-5, 0)}
B. ?
C. {(-6, 1)}
D. {(-5, 1)}
Answer: A
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Perform the indicated operations on a calculator. Express the result with the proper accuracy and precision. Assume that all numbers are approximate.6.8 + 0.466 + 32.29
A. 39 B. 39.6 C. 39.556 D. 39.56
Write the Hindu-Arabic numeral that the given Roman numeral represents.
MMDCI
A. 42,601 B. 6601 C. 41,601 D. 43,601
Divide.
A. 1 B. -82 C. 0 D. undefined
Online retail sales stood at $22.7 billion for 2000. For the next 2 years, they grew by 32.4% and 27.6% per year, respectively. For the next 6 years, online retail sales are projected to grow at 30.2%, 19.7%, 24.3%, 13.6%, 17.2%, and 10.6% per year, respectively. What are the projected online sales for 2008? Round your answer to one decimal place. ?
A. $113.6 billion B. $112.2 billion C. $110.8 billion D. $108.0 billion E. $109.4 billion