Write the polynomial as a square of a binomial or as an expression opposite to a square of a binomial. 0.25x^2 - 0.6xy + 0.36y^2

Plz give an answer and explain to me what the question is even asking. Thx!

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?