24
which of the lists below contains unlike (not like) terms?
a. 2x , -3x , -x , 0.01 x
b. x , 5x2 , 99 x y , 9
c. -x , x , 4x , 0.2 x , (1/4) x
d. - 2 , 7 , 4 , 89

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