Please help me I need it

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?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Factor the polynomial. b^2 + 4b + 4