Answer:
A, B and C are correct
Step-by-step explanation:
[tex](-a)(b)=-ab[/tex]
[tex](-a)(-b)=ab[/tex]
[tex]\sf A) \quad 3(-18)(5)=3(-90)=-270[/tex]
[tex]\sf B) \quad (-7)(-3)(10)=7 \cdot 3 (10)=21(10)=210[/tex]
[tex]\sf C) \quad (4)(-25)(-10)=(4)(25 \cdot 10)=(4)(250)=1000[/tex]
[tex]\sf D) \quad (-3)(-5)(8)=(3 \cdot 5)(8)=(15)(8)=120[/tex]
[tex]\sf E) \quad (-10)(-10)(-10)=(10 \cdot 10)(-10)=(100)(-10)=-1000[/tex]
