Me with this math problems only the ones that are circled

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

How to simply and write the answer n a whole number