**Answer:**

**Step-by-step explanation:**

Isolate the term of a from one side of the equation.

14/21=a/9

Use cross products.

Solve by a.

<u>**a=6**</u>

So, the final answer is a=6.

I hope this helps! Let me know if my answer is wrong or not.

**Answer:**

y = 1/3x

**Step-by-step explanation:**

**Answer:**

3 things :)

**Step-by-step explanation:**

#1. I have reported these websites to many brainly users and I hope they all stay safe.

#2. As you can see in the model there are 10+ (positives) and -4 (negatives)

and when you subtract the positives and the negatives (10 -4) you would get 6

#3. The equation that represents the model would be when you divide the negative and the positive in this case -4/10 which would equal -2/5

we are given point as

(x,y)=(5,7)

translating 3 units to right side

It means we will subtract 3 to x-value

and we get

(x,y)= (5-3,7)

(x,y)=(2,7)

now, it is reflected about x-axis

so, we can change y-value as -y

so, we get our new point as

(x,y)=(2,-7)

now, we have to find it's image reflection

so, we will get

**(x',y')=(-7,2).........Answer**