Answer:
x = 3
Step-by-step explanation:
We can solve this by using ratios of similar triangles
3 x
------ = ------------
3+9 12
3 x
------ = ------------
12 12
x must equal 3 to keep the ratios the same
The pictures may be in a different order for you but it’s the 3rd graph where the minimum is (-4,-1)
Answer:

Step-by-step explanation:

Add the fractions since the denominators are the same.


Simplifying the fraction.


Each of 4 friends has 2 balloons
4 x 2 = 8
herself has one
so 8 + 1 = 9
answer: Total 9 balloons