Answer:
1.0.667
2.3.5,0.12,0.680
3.0.2,0.40,0.112
4.2.5,0.57,1.222
5.1.2,0.75,0.071
6.7.5,0.03,
True
Step-by-step explanation:
-7(5-u)
-7x5 -7x-u
-35+7u
b = 5/2x + 7
b + (-5/2x) = 7
b - 5/2x = 7