Answer:
Length-25
Width-9
Step-by-step explanation:
x-width
2x+7-height
6x+14=68
-14 -14
6x=54
x=9
Answer:
The last answer 
Step-by-step explanation:

The formula to find it is 
so
is correct
Answer:
<h2>(7, 3)</h2>
Step-by-step explanation:
The formula of a midpoint:

We have (2, 3) and (12, 3).
Substitute:

You use the order of operations. So in you start with multiplication. 8*7= 56. Then that would leave 56-4. 56-4 is 52.
I’m pretty sure that the answer is D