Pl hell
a) x²y-2xy+y=?
b) ax²+4ax+4a=?
c) 20x-60x²+45x³=?​

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

2x minus y equals 6, x plus y equals negative 3