Answer:
-4.1
Step-by-step explanation:
-17 - 13.9 = -30.9
when subtracting negative and positive numbers you get a negative:
- - + = -
4/63
(2/5)(2/7)(5/9)=(4/35)(5/9)=(4/7)(1/9)=4/63
i think it 20 if im wrong im sorry
