24 rail cars is what % of 40 rail cars

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?

A50% increase followed by 33 1/2% decrease

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?