Question

Help please thanks so much

Answer 1

C. 20480

Explanation:

You would just have to keep multiplying by 2:

20-10 40-20 60-40 80-80 100- 160 120-320 140-640 160- 1280 180-2569 200-5120 220-10240 240-20480

Answer 2

Answer:20480, 3rd answer

Explanation:

5*2*2 and so on, do on calc to double check