Simplify and write the answer using scientific notation. Use the correct number of significant digits.(2.002 × 10-1) (2.278 × 1010)
A. 4.280 × 10-10
B. 4.280 × 109
C. 4.561 × 10-10
D. 4.561 × 109
Answer: D
Mathematics
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Use the table or graph to answer the question.The following chart shows an appliance store's average percent profit margin on certain items: 
What is the average profit for the store if it lists the price of a particular refrigerator at 
?
A. $112.00 B. $608.00 C. $304.00 D. $98.25
Mathematics
Round to the place value indicated.21,882,252 to the nearest million
A. 22,000,000 B. 21,882,000 C. 21,000,000 D. 21,900,000
Mathematics
Find the exact value. Do not use a calculator.cot (- 
)
A. 0 B. -1 C. 1 D. undefined
Mathematics
Make a bar graph using the given frequencies.The frequency distribution indicates the test averages of a group of 336 students.
A. 
B. 
C. 
D. 
Mathematics