I think it's like 2.739 × 10
10 people because all the sisters have the same brother so 7+1+2.
|6.3| because the lines mean absolute value. Take the positive number values of each number and compare them. 6.3 vs 19/20. 19/20 is 0.95 so 6.3 is bigger.
Answer:
x = 8
Step-by-step explanation:
-6x + 63 = -9
-6x = -72
x = 8
