Explanation is in the file
tinyurl.com/wtjfavyw
Answer:
2.447457627 x 10^6
Step-by-step explanation:
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the second one
2 halves make a whole. 1/2 + 1/2
4 fourths make a whole. 1/4 + 1/4 + 1/4 + 1/4
a half of a fourth is an eighth. 1/4 ÷ 1/2 = 1/8
Let the second no. be x
-3x = 21 → x = 21/-3 → x = -7
