Idon't understand it if someone could explain step by step 11 a. & b

Describe the domain and range of y=2(3)^x-2+5

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