PLZ ANSWER WORTH 10 points ANswer correct and I will give brainiest! ( I keep my words) PART 2

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters