PLEASE HELP! WORTH 20points. AND WILL NAME BRAINLIEST. PLEASE LEAVE HONEST ANSWERS

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?

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i