**Answer:**

3:4

**Step-by-step explanation:**

The original ratio between the red and green crayons would be 18:24, but you would need to simplify that to reach your definite simplified answer. Doing this, you find the least common factor between 18 and 24 which is 3 for 18 and 4 for 24.

**Answer:**

D. (-3;-3)

**Step-by-step explanation:**

2x-3y<9

A. 2×6-3×(-4)=24 FALSE, because 24>9

B. 2×(-1)-3×(-9)=25 FALSE, because 25>9

C. 2×2-3×(-5)=11 FALSE, because 11>9

D. 2×(-3)-3×(-3)=9 TRUE, because 3<9

(4x+4y)+(8x+8y)

12x+12y

That should be your answers, you can't add them bc they're not like terms.

3844 x 10²

all you need to do is think about the 10th power

**Answer:**

Sorry if I'm late!!!

D. Used reason to improve people's lives

**Explanation:
**

The enlightenment was a time when philosophers challenged the teachings of the catholic church.