Compare the number of black stars to the number of white stars.
Black Stars
3
12
18
24
White Stars
2
8
12
?
If the ratio remains the same, how many white stars will
there be if there are 24 black stars?
OA) 16
OB) 18
OC) 20
OD) 27

Step-by-step explanation:

? = 16

Since the number of White stars is 2/3 of the number of Black Stars, you would do 24 x 2/3 = 48/3 = 16

OR

24 x 2/3 = 8 x 2 = 16

Hope that helps!

16 white stars

Step-by-step explanation:

3x8=24

2x8=16

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form