Question

I need these asap......

Answer 1

3. ( 1.5 × 10⁵ )

1.5 × (10×10×10×10×10)=100000

1.5 × 100000= 150000

2. ( 3 × 10⁴ ) ( 7.2 × 10²)

3× (10×10×10×10) × ( 7.2 × (10×10)

(3× 10000) (7.2 × 100)

3× 10000=30000 7.2 × 100= 720

30000×720= 21 600 000