Divide and answer in simpilist form: 1/2 ÷4

Anyone know? is appreciated! will mark brainliest if correct!

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.