Can anyone help me with this first one? Don’t just give the answer, please write down the steps because I have an exam.

Can someone answer this question? : )

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

Which expression is the factorization of x^2+10+21