Answer:
sorry if this is too late
1 x 2 + 1 = 3
3 x 2 + 1 = 7
7 x 2 + 1 = 15
15 x 2 + 1 = 31
31 x 2 + 1 = 63
Step-by-step explanation:
55 times 4 =220
220 times 3 =660
Answer:7:8
Step-by-step explanation:answer
Ans is -48.
Hope this will help u..