A square has f the diagonals of a square bisects its angles? ​

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

How to solve a simultaneous equation involved with fractions?

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?