Write the Hindu-Arabic numeral in expanded form.2,351,928
A. (2 × 106) + (3 × 105) + (5 × 104) + (1 × 103) + (9 × 102) + (2 × 101) + (8 × 100)
B. (2 × 100) + (3 × 101) + (5 × 102) + (1 × 103) + (9 × 104) + (2 × 105) + (8 × 106)
C. (2 × 107) + (3 × 106) + (1 × 104) + (9 × 103) + (2 × 102) + (8 × 101)
D. (2 × 107) + (3 × 106) + (5 × 105) + (1 × 104) + (9 × 103) + (2 × 102) + (8 × 101)
Answer: A
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A. 7 + 23i and 7 - 23i
B. 7 + i
and 7 - i
C. 
+ 7i and 
- 7i
D. 7 + 
i and 7 - 
i
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A. 
B. 
C. 
D. 
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Find the difference in Joel's net income between week 3 and week 4.
A. $137 B. $71 C. $127 D. $81