Answer:20480, 3rd answer
Step-by-step explanation:
5*2*2 and so on, do on calc to double check
Answer:
C. 20480
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
