I need help with how to solve this, i know the answer and stuff but pls help me solve it with steps

1 1/2 cups

Step-by-step explanation:

We can use ratios to solve

2/3 cup seed      x cups seed

=

4 cups mix            9 cups mix

Using cross products

2/3 *9 = 4x

6 = 4x

Divide by 4

6/4 = x

1 2/4 =x

1 1/2 =x

A. 1/1/2 cups

Step-by-step explanation:

So we know:

2/3 cup of sunflower seeds = 4 cups of trail mix

We need to find:

? cups of sunflower seeds = 9 cups of trail mix

Firstly, we find how many cup of seeds for 1 cup of trail mix:

? cup of sunflower seeds = 1 cup of trail mix

This we do by:

2/3 ÷ 4 = 1/6

so now we got,

1/6 cups of sunflower seeds = 1 cup of trail mix

now multiply by what we need to find (the 9 cups of trail mix) so the full answer will be

2/3 ÷ 4 = 1/6

1/6 x 9 = 1/1/2

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option