Kind of easy giving alot points to anyone who knows​

What is the perimeter of square abcd? units units 28 units 37 units

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?

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?