Question

use the rule to write the numbers in the pattern. describe another pattern in the number rule: subtract by 5 first term:50 50.45.40.35.30

Answer 1

So if the rule was multiply by 5 and the first term was 5 then the rule would be
\[\text{if x}\to 5x \]

Answer 2

multiples of 5

Answer 3

n--> 5n where n<=10 and n is integer

Answer 4

I was trying to do the recursion definition. The set S is defined
\[5\in S\]
\[\forall x(x\in S\to 5x\in S)\]
This would be 5, 25 , 125, ..., 5^y