Question

1. Verify and name the property used.
(a) 18 x (-15) = (-15) x 18
(c) 20 x [75 + (-15)] = 20 x 75 + 20 x (-15)
(b) 15 x [3 x (-12)] = (15 x 3) - 12
(d) -12 x [(-7)+5)= (-12) (-7) + (-12) x 5
With steps and explanations
Other wise answer will be not marked brainliest and not considered ​

Answer 1

Answer:

(a) commutative property over multiplication

(b) Distributive property of multiplication over addition

Step-by-step explanation:

(a) 18×(-15)= -270 = (-15) ×18 .

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Answer 2

Answer:

communicative property