Question

Step_by_Step explanation.​

Answer 1

Answer:

i) 45,ii)-108.04

Step-by-step explanation:

I) (3a²b - 1.5ab²)×2.5ab

(3×2²×1 - 1.5×2×1²) × 2.5×2×1

(3×4×1-1.5×2×1) × 2.5×2×1

(12-3) × 5

9×5

45 Ans

ii) -3.7ab×(2.8a²b+1.7ab²)

-3.7×2×1×(2.8×2²×1+1.7×2×1²

-7.4×(2.8×4×1+1.7×2×1

-7.4×(11.2+3.4)

-7.4×(14.6)

-108.04 Ans

Answer 2

Answer:

this is the answer

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