I need some help with these Algebra Problems? Please?

Question

Write the number preceding and succeeding each of the following.

(a) EET twelve ______________ ________________

(b) 10011 two ______________ ________________

If 2b six = 17 eight, what is the value of b? _______________

Answer 1

a) preceeding, EE9, succeeding, EEE.
b) preceeding, 10010, suceeding, 10100.

2b [6] = 17 [8]
2b [6] = 15 [10]
2b [6] = 7.5 [10]
b [6] = 11.3 [6]