Answer:
1. 45
2. 90
3. 161
4. 227
Explanation:
Binary starts off with the first bit equaling 1 and then each subsequent bit being double the previous bit from right to left, so.
128, 64, 32, 16, 8, 4, 2, 1 In this example. If you imagine each 1 or 0 being and on or off for the value it's related to, you just add the numbers together that are on (with a 1 on them)
