Find the area of the shaded region.
A. 2
B. 2 + 
C. 2 + ?
D. 2 - 
Answer: B
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Solve.The land surface of the earth is 57,900,000 square miles. Of this, 19,200,000 square miles are forested. Using scientific notation, express the number of square miles that is not forested.
A. 38.7 × 106 square miles B. 3.87 × 106 square miles C. 3.87 × 108 square miles D. 3.87 × 107 square miles
Simplify completely.
A. xy7 B. x5y6 C. x6y7 D. x5y7
Provide an appropriate response.When any nonzero number is divided by 0, the result is 
.
A. 0 B. impossible to compute C. the nonzero number D. 1
Solve the problem. Round your answer to the nearest tenth, if necessary.Sue rowed her boat across and back Lake Bend in 3 hr. If her rate rowing back was 2 mph less than the rate rowing across, and if the distance each way was 7 mi, find her rate rowing across.
A. 5.9 mph B. 5.5 mph C. 3.7 mph D. 1.5 mph