please explain

1-A Which is the largest binary number that can be expressed with 15 bits? What are the equivalent decimal and hexadecimalnumbers?

1-B Consider a system that contains 32K bytes. Assume we are using byte addressing, that is assume that each byte will needto have its own address, and therefore we will need 32K different addresses. For convenience, all addresses will have thesame numbern, of bits, andnshould be as small as possible.What is the value ofn?

1-C The numbers in each of the following equalities are all expressed in the same base,r. Determine this radixrin each casefor the following operations to be correct.

(a) 14/2 = 5

(b) 54/4 = 1