Aquantity decreases from 35 to 30 ? what is the percent change ?

14.28%

Step-by-step explanation:

1) you have many different formulas for % change the one i'm using is :

n

n= new quantity

o=old quantity

-x= % change(since the quantity decreases the numerator will be negative)

so

30-35=-5

cross multiply:

-500=-35x

divide on both sides:

14.285=x

hope this helps!

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb