Which of these are irrational and which are rational ?

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply