Answer:12
Step-by-step explanation:
Answer:
4.
Step-by-step explanation:
2+2=4
Answer:
b=7
Step-by-step explanation:
We want to determine the positive base b in which:

The easiest way to approach this is to convert all the numbers to base 10.


Next, we factorize the resulting expression.

The positive value of b for which the equality hold is 7.