Ugh, I hate math but... I got to stay positive... PLEASE HELP ME

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?

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

What else equals 42 and 30 for multiply