Change the base five numbers to equivalent base ten numbers. Also take given base five numbers and write next five base numbers to five numbers.

a. 23 five

b.14 five

c. 214 five

Your instruction "write next five base numbers to five numbers" does not make sense. Besides, what are the next five? I don't see them. For your first question,

23 (base5) = 2*5 + 3*1 = 13
14 (base5) = 5 + 4*1 = 9
214 (base5) = 2*5^2 + 1*5 + 4 = 59