Hello!
Your answer is Quote:
"The quantity you don't know is the dependent variable. That is the variable that depends on all the other quantities. With the dependent variable by itself on one side of the equation, you have everything you don't know on one side and everything you do know on the other side."
Answer:
Decrease
Increase
Decrease
Increase
Step-by-step explanation:
(I am slightly guessing because I am still slightly confused, buttt)
Just looking at the distance, it would depend on what the orginal was though so I am not 100% confident!
Answer: 17
Step-by-step explanation: 4x6= 24. then 21 divided by 3= 7. 24-7= 17
Answer:
A = 84 
Step-by-step explanation:
To find the area of a trapezoid, use this equation:

a = top base
b = bottom base
h = height
Let's classify all the sides:
a = 4 ft
b = 10 ft
h = 12 ft
Now, let's plug all these into the equation:

Add what's in the numerator
Divide 14 by 2
A = 84
Multiply 7 by 12
So, the area of the trapezoid is 84
.
Hope this helps!!
To answer the question we make the sum on the left side of the equation:

Since both sides are exactly the same. this equation is always true.